(11bS)-4,4-Dibutyl-4,5-dihydro-2,6-bis[3,5-bis(trifluoroMethyl)phenyl]-3H-dinaphtho[2,1-c:1′,2′-e]phosphepiniuM broMide

Base Information

• Chemical Name: (11bS)-4,4-Dibutyl-4,5-dihydro-2,6-bis[3,5-bis(trifluoroMethyl)phenyl]-3H-dinaphtho[2,1-c:1′,2′-e]phosphepiniuM broMide
• CAS No.: 1110711-01-7
• Molecular Formula: C46H40BrF12P
• Molecular Weight: 931.6683994
• Mol file: 1110711-01-7.mol

Synonyms:(11bS)-4,4-Dibutyl-4,5-dihydro-2,6-bis[3,5-bis(trifluoroMethyl)phenyl]-3H-dinaphtho[2,1-c:1′,2′-e]phosphepiniuM broMide;(11bS)-(-)-4,4-Di-t-butyl-2,6-bis[3,5-bis(trifluoroMethyl)phenyl]-4,5-dihydro-3H-dinaphtho[2,1-c:1',2'-e]phosphepiniuM broMide, 99% S-MARUOKA CAT P-TB;(11bR)-(+)-4,4-Dibutyl-2,6-bis[3,5-bis(trifluoroMethyl)phenyl]-4,5-dihydro-3H-dinaphtho[2,1-c:1',2'-e]phosphepiniuM broMide, 99% R-MARUOKA CAT P-NB

Chemical Property of (11bS)-4,4-Dibutyl-4,5-dihydro-2,6-bis[3,5-bis(trifluoroMethyl)phenyl]-3H-dinaphtho[2,1-c:1′,2′-e]phosphepiniuM broMide

Chemical Property:

• Melting Point: 262-263°C
• PSA: 13.59000
• LogP: 13.70460

Purity/Quality:

98%,99%, ^*data from raw suppliers

(11bS)-(-)-4,4-Di-t-butyl-2,6-bis[3,5-bis(trifluoromethyl)phenyl]-4,5-dihydro-3H-dinaphtho[2,1-c:1',2'-e]phosphepinium bromide, 99% S-MARUOKA CAT P-TB 1-c:1',2'-e]phosphepinium bromide, 99% S-MARUOKA CAT P-TB ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of (11bS)-4,4-Dibutyl-4,5-dihydro-2,6-bis[3,5-bis(trifluoroMethyl)phenyl]-3H-dinaphtho[2,1-c:1′,2′-e]phosphepiniuM broMide

There total 2 articles about (11bS)-4,4-Dibutyl-4,5-dihydro-2,6-bis[3,5-bis(trifluoroMethyl)phenyl]-3H-dinaphtho[2,1-c:1′,2′-e]phosphepiniuM broMide 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: 99.0%

(S)-3,3'-bis(3,5-bis(trifluoromethyl)phenyl)-2,2'-bis(bromomethyl)-1,1'-binaphthalene + di-n-butylphosphine (1732-72-5) → Br(1-)*C46H38F12P(1+) (1110711-01-7)

Guidance literature:

In diethyl ether; toluene; at 120 ℃; for 24h; Inert atmosphere;

DOI:10.1002/anie.200804140

Reference yield:

1-bromo-butane (109-65-9) + C42H29F12P → Br(1-)*C46H38F12P(1+) (1110711-01-7)

Guidance literature:

In toluene; at 110 ℃;

DOI:10.1039/c3sc22130j

upstream raw materials:

di-n-butylphosphine

1-bromo-butane

Refernces

• 1、 He, Rongjun,Maruoka, Keiji. "Binaphthyl-modified quaternary phosphonium salts as chiral phase transfer catalysts: Application to asymmetric amination of β-keto esters". . p. 2289 - 2292. Retrieved 2009.