5952-71-6Relevant academic research and scientific papers
Efficient method for thioacetalization of carbonyl compounds in the presence of a catalytic amount of benzyltriphenylphosphonium tribromide (BTPTB) under solvent-free conditions
Hajipour, Abdol Reza,Pourmousavi, Seied A.,Ruoho, Arnold E.
, p. 2548 - 2566 (2008)
A variety of carbonyl compounds have been successfully converted to the corresponding thioacetal derivatives in good to excellent yields on reaction of carbonyl compounds with 1,2-ethanedithiole, 1,3-propanedithiol, and ethylthiol in the presence of a cat
(PhCH2PPh3)+Br3-: A versatile reagent for the preparation, deprotection, and oxidation of trimethylsilyl ethers
Shirini,Imanzadeh,Mousazadeh,Mohammadpoor-Baltork,Aliakbar,Abedini
experimental part, p. 641 - 646 (2010/06/17)
Benzyltriphenylphosphonium tribromide (BTPTB), as a stable solid reagent, is easily prepared by the reaction of benzyltriphenylphosphonium bromide with Br2. This reagent can be used as an efficient catalyst for the conversion of alcohols to their corresponding trimethylsilyl ethers (TMS ethers) with hexamethyldisilazane (HMDS). Desilylation of TMS ethers is also catalyzed by BTPTB in MeOH at room temperature in high yields. BTPTB is also able to oxidize the TMS ethers to their corresponding carbonyl compounds in a mixture of MeOH/H2O in good to high yields. Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file.
(PhCH2PPh3)+Br3-: A versatile reagent for the chemoselective oxidation of sulfides to sulfoxides
Shirini,Imanzadeh,Mousazadeh,Aliakbar
experimental part, p. 1640 - 1644 (2010/09/09)
Benzyltriphenylphosphonium tribromide (BTPTB), as a stable solid reagent, is easily prepared by the reaction of benzyltriphenylphosphonium bromide with Br2. This reagent can be used as an efficient reagent for the chemoselective oxidation of dialkyl and a
BROMINATION OF ANILINES BY BENZYLTRIPHENYLPHOSPHONIUM TRIBROMIDE
Xin-teng, Ding,Guo-bin, Liu
, p. 1261 - 1266 (2007/10/02)
Anilines and benzyltriphenylphosphonium tribromide in dichloromethane and methanol medium in the presence of sodium bicarbonate react within a few minutes at room temperature to give the corresponding polybromoanilines in good yields.
