Dimethyltin dibromide

Base Information

• Chemical Name: Dimethyltin dibromide
• CAS No.: 2767-47-7
• Molecular Formula: C2H6 Br2 Sn
• Molecular Weight: 308.588
• Hs Code.: 2931900090
• European Community (EC) Number: 631-068-5
• DSSTox Substance ID: DTXSID40182036
• Wikidata: Q72464238
• Mol file: 2767-47-7.mol

Synonyms:Dimethyltin dibromide;2767-47-7;dibromo(dimethyl)stannane;Stannane, dibromodimethyl-;Tin, dimethyl-, dibromide;Stannane, dibromodimethyl- (8CI,9CI);Dibromodimethylstannane;Dimethyltindibromide;Dimethylzinndibromid;Tin, dimethyldibromo-;C2H6Br2Sn;C2-H6-Br2-Sn;DTXSID40182036;MFCD00013518;AKOS025293665;LS-146500;FT-0634473;J-016851

Chemical Property of Dimethyltin dibromide

Chemical Property:

• Melting Point: 75-213oC
• Boiling Point: 208-213°C
• Flash Point: 208-213°C
• PSA: 0.00000
• LogP: 2.47800
• Sensitive.: Moisture Sensitive
• Water Solubility.: It hydrolyzes slowly in water.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 309.78378
• Heavy Atom Count: 5
• Complexity: 30.6

Purity/Quality:

98%Min ^*data from raw suppliers

DIMETHYLTIN DIBROMIDE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): A poison. TWA 0.1 mg(Sn)/m³; STEL 0.2 mg(Sn)/m³ (skin).
• Hazard Codes: T
• Statements: 23/24/25-34
• Safety Statements: 26-27-28-36/37/39-45

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C[Sn](C)(Br)Br

Technology Process of Dimethyltin dibromide

There total 18 articles about Dimethyltin dibromide which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 86.0%

dibromo(phenyl)borane (4151-77-3) + 1,3-di-tert-butyl-2,2,4,4-tetramethyl-1,3,2,4-diazadistannaetidine → 1,3-di-tert-butyl-2,4,-diphenyl-1,3,2,4-diazadiboretidine (103382-72-5) + dimethyltin dibromide (2767-47-7)

Guidance literature:

In dichloromethane; under N2, PhBBr2 in CH2Cl2 droped to a soln. of Sn-compound at -78°C under stirring, warmed to room temp.; volatiles removed at room temp. and 1E-2 Torr, Et2SnBr2 sublimed at 25°C and 5E-6 Torr, residue recrystd. (CH2Cl2); elem. anal.;

Reference yield: 81.0%

dibromomethylborane (17933-16-3) + 2,4,6-trimethyl-N,N-bis(trimethylstannyl)aniline (137516-91-7) → dimethyltin dibromide (2767-47-7) + bis(dimethylboryl)mesitylamine

Guidance literature:

In dichloromethane; N2 atmosphere, addn. of soln. of stannyl compound to soln. of borane at -50°C (1 h) with stirring, slow warming to room temp., stirring (room temp., 2 d); removement of solvent (25°C, 12 Torr), pptn. of Me2SnBr2 (petroleum ether, -30°C, 4-6 h), filtration, removement of Me2SnBr2 (25°C, 1E-6 Torr), fractional distillation (50°C, 1E-6 Torr); elem. anal.;

Reference yield: 58.0%

2,2,4,4,6,6-hexamethyl-1,3,5,2,4,6-trithiatristanninane (16892-64-1) + ethylene dibromide (106-93-4) → 1,4-Dithiane (505-29-3) + dimethyltin dibromide 1,4-dithiane 2:1 complex + dimethyltin dibromide (2767-47-7)

Guidance literature:

In further solvent(s); soln. of (Me2SnS)3 in BrCH2CH2Br was heated at 140°C for 35 h; excess C2H4Br2 was removed in vac. at room temp., products were sepd. by sublimation at 70°C; dithiane was identified by chromy., elem. anal. for 2Me2SnBr2*S(CH2CH2)2S;

DOI:10.1016/0022-328X(87)80345-5

upstream raw materials:

tetrabromosilane

trimethylstannane

1-bromo-1,2,2-trifluoroethene

dimethylstannane

Downstream raw materials:

dimethylstannane

(CH₃)2Sn(P(C₆H₁₁)2)2

Dimethylzinn-bis-diphenylphosphin

{IrBr(COD)}2

Refernces

• 1、 Diemer, Stefan,Noeth, Heinrich,Storch, Wolfgang. "Synthesis of Boron-Halogenated Diborylamines and Diborylhydrazines by Cleavage of Stannazanes". . p. 1765 - 1780. Retrieved 2007/10/03.
• 2、 Franz, Thomas,Hanecker, Elisabeth,Noeth, Heinrich,Stoecker, Walter,Storch, Wolfgang,Winter, Gerhard. "Contributions to the Chemistry of Boron, 167. Synthesis of Diazadiboretidines, Borazines, and Octahydrotetrazatetraborocines via Stannazane Cleavage Reactions". . p. 900 - 916. Retrieved 2007/10/02.