Bis(fluorosulfuryl)imide: a Brönsted Acid Catalyst for the Coupling of Allylic and Benzylic Alcohols With Allyltrimethylsilane
摘要:
The Bronsted acid HN(SO2F)(2) catalyses the reaction of allylic and benzylic alcohols with allyltrimethylsilane to give the corresponding coupled products in good yields. (C) 1997 Published by Elsevier Science Ltd.
Vanadium(II) complexes as efficient reagents for direct construction of asymmetric quaternary carbons from carbonyl compounds
作者:Yasutaka Kataoka、Isamu Makihira、Hiroaki Akiyama、Kazuhide Tani
DOI:10.1016/0040-4039(95)01299-w
日期:1995.9
Direct geminal diallylation of propiophenone with allyl bromide has been achieved in the presence of vanadium(II) species. By applying this method, direct construction of asymmetric quaternary carbons from propiophenone has been accomplished. Strong oxophilicity of the low-valent vanadium facilitated the deoxygenative reaction. The present reaction is characteristic of vanadium complexes.
Direct construction of quaternary carbons from carbonyl compounds utilizing low-valent vanadium complexes
作者:Yasutaka Kataoka、Isamu Makihira、Hiroaki Akiyama、Kazuhide Tani
DOI:10.1016/s0040-4020(97)00632-7
日期:1997.7
Direct geminal diallylation of a carbonyl compound with allyl bromide has been achieved in the presence of a low-valent vanadium complex and zinc. The diallylation has been found to proceed stepwise and the two allyl groups were introduced successively. By applying this method, one-pot synthesis of asymmetric quaternary carbons has been accomplished. As the first alkylating reagent a combination of allyl bromide and zinc, a Grignard reagent, or an alkyllithium can be used. The second one should be the combination of a low-valent vanadium(II) complex and allyl bromide, benzyl bromide, or propargyl bromide. Strong oxophilicity of the low-valent vanadium facilitated the deoxygenative allylation. (C) 1997 Elsevier Science Ltd.
Colonge; Garnier, Bulletin de la Societe Chimique de France, 1948, p. 436,438
作者:Colonge、Garnier
DOI:——
日期:——
Bis(fluorosulfuryl)imide: a Brönsted Acid Catalyst for the Coupling of Allylic and Benzylic Alcohols With Allyltrimethylsilane
作者:Gurmeet Kaur、Monica Kaushik、Sanjay Trehan*
DOI:10.1016/s0040-4039(97)00390-0
日期:1997.4
The Bronsted acid HN(SO2F)(2) catalyses the reaction of allylic and benzylic alcohols with allyltrimethylsilane to give the corresponding coupled products in good yields. (C) 1997 Published by Elsevier Science Ltd.