97038-96-5

Basic information

• Product Name: 1,3-dibromo-2-(2,6-dibromophenyl)benzene
• Synonyms: 1,3-dibromo-2-(2,6-dibromophenyl)benzene;2,2',6,6'-Tetrabromo-1,1'-biphenyl
• CAS NO: 97038-96-5
• Molecular Formula: C₁₂H₆Br₄
• Molecular Weight: 469.79
• Mol File: 97038-96-5.mol
• Article Data: 13

Chemical Properties

• Melting Point: 215 °C(Solv: ethanol (64-17-5); ethyl ether (60-29-7))
• Boiling Point: 391.3°Cat760mmHg
• Flash Point: 184.8°C
• Appearance: /
• Density: 2.14g/cm³
• CAS DataBase Reference: 1,3-dibromo-2-(2,6-dibromophenyl)benzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-dibromo-2-(2,6-dibromophenyl)benzene(97038-96-5)
• EPA Substance Registry System: 1,3-dibromo-2-(2,6-dibromophenyl)benzene(97038-96-5)

Safety Data

• Hazardous Substances Data: 97038-96-5(Hazardous Substances Data)

Usage

Uses

2,2'',6,6''-Tetrabromo-1,1''-biphenyl is a research intermediate used in the preparation of triphenylenes, tetraphenylenes, and other related compound.

Synthetic route

1,3-dibromo-2-iodo-benzene (19821-80-8) → 2,2’,6,6’-tetrabromobiphenyl (97038-96-5)

Conditions	Yield
Stage #1: 1,3-dibromo-2-iodo-benzene With n-butyllithium; copper(ll) bromide In diethyl ether; hexane at -78℃; for 0.75h; Inert atmosphere; Schlenk technique; Stage #2: With nitrobenzene In diethyl ether; hexane at -78 - 20℃; for 6h;	60%
Stage #1: 1,3-dibromo-2-iodo-benzene With n-butyllithium In diethyl ether at -78℃; Ullman coupling; Stage #2: With nitrobenzene; copper(I) bromide Ullman coupling;	56%
Stage #1: 1,3-dibromo-2-iodo-benzene With n-butyllithium In diethyl ether; hexane at -78℃; for 1.08333h; Stage #2: With copper(ll) bromide In diethyl ether; hexane at -78℃; for 1.5h; chemoselective reaction;	48%

1,3-dibromobenzene (108-36-1) → 2,2’,6,6’-tetrabromobiphenyl (97038-96-5)

Conditions	Yield
Stage #1: 1,3-dibromobenzene With lithium diisopropyl amide In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: With copper(I) cyanide lithium chloride; p-benzoquinone In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere;	60%
Stage #1: 1,3-dibromobenzene With lithium diisopropyl amide In tetrahydrofuran; hexane at -78℃; for 2h; Stage #2: With copper(l) cyanide; chloranil; lithium chloride	47%
Stage #1: 1,3-dibromobenzene With n-butyllithium; diisopropylamine In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: With copper(l) cyanide; lithium chloride In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #3: With p-benzoquinone In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere;	42%
Multi-step reaction with 2 steps 1.1: n-butyllithium; lithium diisopropyl amide / hexane; tetrahydrofuran / 2 h / -78 °C / Inert atmosphere 1.2: 20 °C 2.1: n-butyllithium; copper(ll) bromide / hexane; diethyl ether / 0.75 h / -78 °C / Inert atmosphere; Schlenk technique 2.2: 6 h / -78 - 20 °C View Scheme

4,6,2',6'-tetrabromo-biphenyl-2,4'-diyldiamine (854242-36-7) → 2,2’,6,6’-tetrabromobiphenyl (97038-96-5)

1,3-dibromo-2-iodo-benzene (19821-80-8) → 1,2,3-tribromobenzene (608-21-9) + 2,2’,6,6’-tetrabromobiphenyl (97038-96-5)

Conditions	Yield
With n-butyllithium; copper(ll) bromide 1.) ether, hexane, -78 deg C, 2 h, 2.) ether, hexane, from -78 deg C to RT, 12 h; Multistep reaction. Yields of byproduct given;

1,3-dibromo-2-iodo-benzene (19821-80-8) → 1,3-dibromo-2-chlorobenzene (19230-27-4) + 2,2’,6,6’-tetrabromobiphenyl (97038-96-5)

Conditions	Yield
With n-butyllithium; copper dichloride 1.) ether, hexane, -78 deg C, 2 h, 2.) ether, hexane, from -78 deg C to RT, 12 h; Multistep reaction. Yields of byproduct given;
With n-butyllithium; copper dichloride 1.) ether, hexane, -78 deg C, 2 h, 2.) ether, hexane, from -78 deg C to RT, 12 h; Yield given. Multistep reaction;

2,2',4,4',6,6'-hexabromo-1,1'-biphenyl (59261-08-4) → 2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + 2,4,2’,4’-tetrabromobiphenyl (66115-57-9) + 2,4,2',6'-tetrabromo-biphenyl (97038-95-4)

Conditions	Yield
Stage #1: 2,2',4,4',6,6'-hexabromo-1,1'-biphenyl With n-butyllithium In tetrahydrofuran at -78℃; for 0.166667h; Inert atmosphere; Stage #2: With methanol In tetrahydrofuran at -78 - 20℃; Inert atmosphere;	A 6 %Chromat. B 30 %Chromat. C 63 %Chromat.

2,6-dibromoaniline (608-30-0) → 2,2’,6,6’-tetrabromobiphenyl (97038-96-5)

Conditions	Yield
Multi-step reaction with 2 steps 1.1: sulfuric acid / 0.17 h / 0 °C 1.2: 3 h / 0 °C 1.3: 0.5 h / 0 °C 2.1: n-butyllithium / diethyl ether; hexane / 1.08 h / -78 °C 2.2: 1.5 h / -78 °C View Scheme

chloro-trimethyl-silane (75-77-4) + 2,2’,6,6’-tetrabromobiphenyl (97038-96-5) → trimethyl(2',6,6'-tribromo-1,1'-biphenyl-2-yl)silane (911297-83-1)

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran at -80℃; Stage #2: chloro-trimethyl-silane In tetrahydrofuran	100%
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -75℃; Stage #2: chloro-trimethyl-silane In tetrahydrofuran; hexane at -75 - 25℃; Further stages.;	88%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + bis(pinacol)diborane (73183-34-3) → 4,4'-bis(pinacolatoboronyl)-2,2'6,6'-tetrabromobiphenyl (1356238-72-6)

Conditions	Yield
(1,5-cyclooctadiene)(methoxy)iridium(I) dimer In further solvent(s) tert-butylmethyl ether, 60°C;	93%
With (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 4,4'-di-tert-butyl-2,2'-bipyridine In tert-butyl methyl ether for 21h; Inert atmosphere; Reflux;	91%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) → 2,2,,6-tribromobiphenyl (507241-82-9)

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexanes at -75℃; Stage #2: With methanol; water In tetrahydrofuran; hexanes	91%
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexanes at -75℃; Stage #2: With methanol In tetrahydrofuran; hexanes Product distribution / selectivity;	91%
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexanes Stage #2: With methanol Product distribution / selectivity;	91%
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexanes Stage #2: With methanol In tetrahydrofuran; hexanes	91%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + N,N-dimethyl-formamide (68-12-2, 33513-42-7) → (6,6'-dibromobiphenyl-2,2'-diyl)dicarbaldehyde (1141733-49-4, 1260376-09-7, 1260376-17-7)

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran; hexane at -78℃; for 0.5h; Stage #3: With hydrogenchloride In water; ethyl acetate	90%
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran Stage #2: N,N-dimethyl-formamide	85%
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran Stage #2: N,N-dimethyl-formamide In tetrahydrofuran	72%
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium; (1R,2R)-bis(dimethylamino)cyclohexane In toluene at -78℃; for 2h; Inert atmosphere; Stage #2: N,N-dimethyl-formamide In toluene at -78 - 20℃; Inert atmosphere;

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + 1,2-dibromomethane (74-95-3) → 4,4,8,8-Tetrabrom-4,8-dihydrodibenzopentalen (33213-26-2)

Conditions	Yield
With tris-(dibenzylideneacetone)dipalladium(0); sodium t-butanolate In toluene at 65℃; for 18h;	87%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + dimethylsilicon dichloride (75-78-5) → 1,9-dibromo-5,5-dimethyldibenzosilole (1187984-45-7)

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium Stage #2: dimethylsilicon dichloride	85%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + methyl iodide (74-88-4) → 2,6,6'-tribromo-2'-methoxy-1,1'-biphenyl (871707-37-8)

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -75℃; Stage #2: With sodium hydroxide; fluorodimethoxyborane diethyl etherate; dihydrogen peroxide In tetrahydrofuran; hexane at -75 - 25℃; Stage #3: methyl iodide With potassium hydroxide In dimethyl sulfoxide for 1h; Further stages.;	82%
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexanes at -75℃; Stage #2: With sodium hydroxide; fluorodimethoxyborane diethyl etherate; dihydrogen peroxide In tetrahydrofuran; hexanes; water at -75℃; Stage #3: methyl iodide With hydrogenchloride; potassium hydroxide more than 3 stages;	82%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) → 2,2’-dibromo-6,6’-diiodo-1,1’-biphenyl

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; Inert atmosphere; Stage #2: With iodine In tetrahydrofuran; hexane at -78 - 20℃;	82%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) → 2,6,6'-tribromo-1,1'-biphenyl-2-ol (911297-81-9)

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -75℃; Stage #2: With sodium hydroxide; fluorodimethoxyborane diethyl etherate; dihydrogen peroxide In tetrahydrofuran; hexane at -75 - 25℃; Further stages.;	81%
Multi-step reaction with 2 steps 1.1: n-BuLi / hexane; tetrahydrofuran / -75 °C 1.2: hexane; tetrahydrofuran 2.1: aq. NaOH; H2O2 / tetrahydrofuran View Scheme
With sodium hydroxide; n-butyllithium; dihydrogen peroxide; fluorodimethoxyborane-diethyl etherate In tetrahydrofuran; hexane; water at -75℃;

chloromethyl formate (30566-31-5) + 2,2’,6,6’-tetrabromobiphenyl (97038-96-5) → 4,5‐dibromo‐9H‐fluoren‐9‐one (69414-97-7)

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Schlenk technique; Inert atmosphere; Stage #2: chloromethyl formate In tetrahydrofuran; hexane at -78℃; for 0.5h; Schlenk technique; Inert atmosphere;	78%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + methyl chloroformate (79-22-1) → 4,5‐dibromo‐9H‐fluoren‐9‐one (69414-97-7)

Conditions	Yield
With n-butyllithium In tetrahydrofuran; hexane at 20℃;	78%
With tert.-butyl lithium In tetrahydrofuran; hexane at 20℃;	78%
With n-butyllithium In tetrahydrofuran; hexane at 20℃;	78%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + C24H30NPSn2 + 1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane (30404-92-3) → C36H23NO2P2

Conditions	Yield
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h;	73%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + C24H32NPSn2 + 1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane (30404-92-3) → C36H25NO2P2

Conditions	Yield
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h;	73%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + C24H32NPSn2 + 1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane (30404-92-3) → C36H25NO2P2

Conditions	Yield
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h;	73%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + C36H37N2OPSn2 + 1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane (30404-92-3) → C48H30N2O3P2

Conditions	Yield
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h;	73%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + C24H30NPSn2 → C48H30N2O2P2

Conditions	Yield
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h;	73%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) → 1,8-di-bromobiphenylene (180404-96-0) + 1,8,9,16-Tetrabromotetraphenylene

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Metallation; Stage #2: With zinc dibromide In tetrahydrofuran; hexane at -50℃; for 2h; Transmetallation; Stage #3: With copper dichloride In tetrahydrofuran; hexane at -78 - 20℃; Elimination; Substitution;	A 72% B n/a
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Stage #2: With zinc dibromide In tetrahydrofuran; hexane at -50℃; for 2h; Stage #3: With copper dichloride In tetrahydrofuran; hexane at -78 - 20℃;	A 72% B n/a
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Metallation; Stage #2: With copper dichloride In tetrahydrofuran; hexane at -78 - 20℃; Elimination; Substitution;	A 15% B 61%
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; Stage #2: With copper dichloride In tetrahydrofuran; hexane at -78℃;	A 15% B 61%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + 10-((2-methoxyethoxy)methyl)-9(10H)-acridinone (147643-41-2) → 9,9'-(6,6'-dibromo-2,2'-biphenyldiyl)diacridine (1141733-47-2)

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: 10-((2-methoxyethoxy)methyl)-9(10H)-acridinone In tetrahydrofuran; hexane at -78 - 23℃; Stage #3: With hydrogenchloride In ethanol; water at 23℃; for 3h;	71%

xanth-9-one (90-47-1) + 2,2’,6,6’-tetrabromobiphenyl (97038-96-5) → 6,6'-dibromo-2,2'-bis(9-hydroxyxanthen-9-yl)biphenyl (500719-34-6)

Conditions	Yield
With n-butyllithium In tetrahydrofuran; hexane at -78 - 20℃;	68%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + chloro-diphenylphosphine (1079-66-9) → C36H26Br2P2 + (M)-(6,6'-dibromo-[1,1'-biphenyl]-2,2'-diyl)bis(diphenylphosphine)

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium; (1R,2R)-1,2-diphenyl-1,2-dimethoxyethane In hexane; toluene at -78℃; for 2h; Schlenk technique; Inert atmosphere; Stage #2: chloro-diphenylphosphine In tetrahydrofuran; hexane; toluene at -78 - 20℃; for 12h; Schlenk technique; Inert atmosphere; Overall yield = 80 %; Overall yield = 545 mg;	A n/a B 61%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + C24H30NPSn2 → C48H30N2O2P2

Conditions	Yield
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h;	60%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + C19H26NPSn2 → C38H22N2O2P2

Conditions	Yield
With 1,1'-azobis(1-cyanocyclohexanenitrile) at 125℃; for 72h;	60%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + N,N-dimethyl-formamide (68-12-2, 33513-42-7) → (S)-6,6'-dibromo[1,1'-biphenyl]-2,2'-dicarbaldehyde

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With (S,S)-1,2-di(3H-dinaphtho[2,1-c:1',2'-e]azepin-4(5H)-yl)ethane; sec.-butyllithium In hexane; cyclohexane; toluene at -78℃; for 1.5h; Inert atmosphere; Schlenk technique; Stage #2: N,N-dimethyl-formamide In hexane; cyclohexane; toluene at -78℃; Reagent/catalyst; Inert atmosphere; Schlenk technique; enantioselective reaction;	50%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + chlorodicyclohexylphosphane (16523-54-9) → C36H50Br2P2 + (M)-(6,6'-dibromo-[1,1'-biphenyl]-2,2'-diyl)bis(dicyclohexylphosphine)

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium; (1R,2R)-1,2-diphenyl-1,2-dimethoxyethane In hexane; toluene at -78℃; for 2h; Schlenk technique; Inert atmosphere; Stage #2: chlorodicyclohexylphosphane In tetrahydrofuran; hexane; toluene at -78 - 20℃; for 12h; Schlenk technique; Inert atmosphere; Overall yield = 92 %; Overall yield = 650 mg;	A n/a B 46%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + phenyllithium (591-51-5) → C18H11Br3 (1171115-57-3)

Conditions	Yield
With tetrakis(triphenylphosphine) palladium(0); zinc(II) chloride In tetrahydrofuran at -80 - 20℃; Negishi coupling reaction;	42%

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + 1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane (30404-92-3) → C24H16P2 (1356238-70-4) + trans/cis-4,8-diphenyl-4,8-dihydrophosphindolo [4,3,2-bcd]phosphindole 4,8-dioxide

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl; 1,1,1,3,3,3-hexamethyl-2-phenyldistannaphosphane With 1,1'-azobis(1-cyanocyclohexanenitrile) In 4-methyl-1,2,3-trifluorobenzene at 125℃; for 45h; Inert atmosphere; Stage #2: With dihydrogen peroxide In dichloromethane; water; 4-methyl-1,2,3-trifluorobenzene at 20℃; for 1h; Inert atmosphere;	A 41% B n/a

2,2’,6,6’-tetrabromobiphenyl (97038-96-5) + phenyldiiodoarsine (6380-34-3) → 4,5-dibromo-9-phenyl-9-arsafluorene

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; Stage #2: phenyldiiodoarsine In tetrahydrofuran; hexane at 20℃; for 14h; Inert atmosphere;	40%

1,4-dibromo-butane (110-52-1) + 2,2’,6,6’-tetrabromobiphenyl (97038-96-5) → (M)-1,12-dibromo-5,6,7,8-tetrahydrodibenzo[a,c][8]annulene + C16H14Br2

Conditions	Yield
Stage #1: 2,2’,6,6’-tetrabromobiphenyl With n-butyllithium; (1R,2R)-1,2-diphenyl-1,2-dimethoxyethane In hexane; toluene at -78℃; for 2h; Schlenk technique; Inert atmosphere; Stage #2: 1,4-dibromo-butane With N,N,N,N,-tetramethylethylenediamine In tetrahydrofuran; hexane; toluene at -78 - 20℃; for 72h; Schlenk technique; Inert atmosphere; Overall yield = 51 %; Overall yield = 395 mg;	A 27% B n/a

Upstream product

• 19821-80-8 1,3-dibromo-2-iodo-benzene 
• 608-30-0 2,6-dibromoaniline 
• 59261-08-4 2,2',4,4',6,6'-hexabromo-1,1'-biphenyl 
• 108-36-1 1,3-dibromobenzene 
• 854242-36-7 4,6,2',6'-tetrabromo-biphenyl-2,4'-diyldiamine 

Downstream Products

• 873110-79-3 (2'-bromo-6-methoxy-1,1'-biphenyl-2-yl)dicyclohexylphosphine 
• 871707-43-6 (6-(methoxy)biphenyl-2,2'-diyl)bis(diphenylphosphine) 
• 871707-39-0 2-bromo-6-(dicyclohexylphosphino)-2'-iodo-6'-methoxy-1,1'-biphenyl 
• 871707-41-4 6-bromo-2,6'-bis(diphenylphosphino)-2'-methoxy-1,1'-biphenyl 
• 871707-44-7 6-(dicyclohexylphosphanyl)-2'-diphenylphosphanyl-2-methoxy-1,1'-biphenyl 
• 871707-40-3 2-bromo-6-(dicyclohexylphosphino)-2'-(diphenylphosphino)-6'-methoxy-1,1'-biphenyl 
• 871707-42-5 2',6-bis(dicyclohexylphosphino)-2-methoxy-1,1'-biphenyl 
• 949172-68-3 2,2'-bis(diphenylphosphanyl)-6-methoxy-6'-(trimethylsilanyl)biphenyl 

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