Divalent samarium-induced cyclopropanation of lithium enolates. A one-pot synthesis of cyclopropanols from ketones
作者:Tsuneo Imamoto、Nobuyuki Takiyama
DOI:10.1016/s0040-4039(00)95354-1
日期:1987.1
Lithium enolates, generated by deprotonation of ketones with lithium diisopropylamide, react with diiodomethane in the presence of SmI2 to give cyclopropanols.
由酮与二异丙基氨基锂去质子化生成的烯醇化锂在SmI 2的存在下与二碘甲烷反应生成环丙醇。
Site-selective ring opening of bicyclo[n.1.0]alkanols: an Fe(<scp>ii</scp>)-catalyzed 1,6-conjugate addition to <i>p</i>-quinone methides
作者:Neha Jha、Subhadip Mondal、Manmohan Kapur
DOI:10.1039/d3cc04135b
日期:——
Herein, we report an efficient synthetic strategy for an Fe(ii)-catalyzed site-selective ring opening of bicyclo[n.1.0]alkanols and their concomitant 1,6-conjugate addition to p-quinone methides. Access to tertiary carbon centers with appendaged carbocycles of distinct sizes and functional groups are achieved, under a substrate-controlled bond scission of the fused cyclopropanols. Synthetic derivatizations
Efficient Fragmentation of the Tertiary Cyclopropanol System: Oxidation of 1-(Trimethylsiloxy)bicyclo[n.1.0]alkanes and Analogues By Using Phenyliodine(III) Diacetate
作者:M Kirihara
DOI:10.1016/00404-0399(50)1427j-
日期:1995.9.18
Hypervalent λn-iodane-mediated fragmentation of tertiary cyclopropanol systems
The oxidation of tertiary cyclopropyl silyl ethers with hypervalent lambda(n)-iodanes caused fragmentation which produced alkenoic acids or esters. (C) 1998 Elsevier Science Ltd. All rights reserved.