33143-50-9Relevant articles and documents
Bismuth-catalyzed direct substitution of the hydroxy group in alcohols with sulfonamides, carbamates, and carboxamides
Qin, Hongbo,Yamagiwa, Noriyuki,Matsunaga, Shigeki,Shibasaki, Masakatsu
, p. 409 - 413 (2007)
(Figure Presented) No preactivation of the alcohol substrates is required in allylic, propargylic, and benzylic aminations catalyzed by a combination of commercially available Bi(OTf)3 and KPF6, mostly at room temperature (see scheme). The substitution reactions of readily accessible allylic, propargylic, and benzylic alcohols with sulfonamides, carbamates, and carboxamides give the desired amine products in up to 99% yield.
Amidation of 1,3-diarylallylic compounds catalysed by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone with molecular oxygen as the terminal oxidant
Cheng, Dongping,Zhou, Xiayi,Yuan, Kun,Yan, Jizhong
, p. 127 - 129 (2016/04/20)
An efficient amidation has been developed of 1,3-diarylpropenes by carboxamides, sulfonamides, carbamates and anilines catalysed by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone and benzoyl peroxide with molecular oxygen. The corresponding products were obtai
Aluminum triflate as a powerful catalyst for direct amination of alcohols, including electron-withdrawing group-substituted benzhydrols
Ohshima, Takashi,Ipposhi, Junji,Nakahara, Yasuhito,Shibuya, Ryozo,Mashima, Kazushi
supporting information, p. 2447 - 2452 (2012/11/07)
Direct aminations of allylic alcohols, benzylic alcohols, and benzhydrols with electron-withdrawing (F, Br, I, NO2, or CN) substituents were efficiently catalyzed by aluminum triflate [Al(OTf)3] to afford the corresponding biarylamines in high yield, and the dibromo-substituted product was further transformed into letrozole. Copyright
