Enantioselective epoxidation of tertiary allylic alcohols by chiral dihydroperoxides
摘要:
gem-Dihydroperoxides were successfully used for the enantioselective epoxidation of tertiary and primary allylic alcohols. Epoxides derived from tertiary alcohols were obtained in yields up to 71% with ee's up to 52%. (c) 2013 Elsevier Ltd. All rights reserved.
A novel synthesis of epoxides and allylic alcohols from carbonyl compounds through α, β-epoxy sulfoxides
作者:Tsuyoshi Satoh、Youhei Kaneko、Koji Yamakawa
DOI:10.1016/s0040-4039(00)84534-7
日期:——
Treatment of α,β-epoxy sulfoxides, easily prepared from carbonyl compounds with 1 equivalent of n-butyllithium at −100 °C gave the desulfinated epoxides in good yields. The similar α,β-epoxy sulfoxides having arylmethyl group at α-position, on treatment with excess n-butyllithium at −70 °C afforded 3-aryl allylicalcohols.
Copper-Catalyzed Alkenylation of Alcohols with β-Nitrostyrenes via a Radical Addition–Elimination Process
作者:Yan-qin Yuan、Sheng-rong Guo
DOI:10.1055/s-0034-1380445
日期:——
A new method for the preparation of allylic alcohol derivatives has been developed via a radical mechanism using DTBP as the radical initiator promoted by copper salt. The C(sp(3))-H bond in various alcohols, toluene derivatives, and alkanes were successfully converted into C-C bonds to yield the desired products in moderate to good yields.