Vitamin D3: synthesis of seco C-9,11,21-trisnor-17-methyl-1α, 25-dihydroxyvitamin D3 analogues
摘要:
The synthesis and biological activities of seco C-9,11,21-trisnor-17-methyl-1alpha,25-dihydroxyvitamin D-3 analogues (D-ring analogues) are described. (C) 2002 Elsevier Science Ltd. All rights reserved.
作者:Margaret A. Brimble、David L. Officer、Geoffrey M. Williams
DOI:10.1016/0040-4039(88)85307-3
日期:1988.1
A convenient synthetic approach to spiroketals based on the addition of α-sulfonylcarbanions to lactones is described.
描述了一种基于向内酯中添加α-磺酰基碳二酮的便捷合成方法。
BRIMBLE, MARGARET A.;OFFICER, DAVID L.;WILLIAMS, GEOFFREY M., TETRAHEDRON LETT., 29,(1988) N 29, C. 3609-3612
作者:BRIMBLE, MARGARET A.、OFFICER, DAVID L.、WILLIAMS, GEOFFREY M.
DOI:——
日期:——
US4847012A
申请人:——
公开号:US4847012A
公开(公告)日:1989-07-11
Vitamin D3: synthesis of seco C-9,11,21-trisnor-17-methyl-1α, 25-dihydroxyvitamin D3 analogues
作者:Yusheng Wu、Katrien Sabbe、Pierre De Clercq、Maurits Vandewalle、Roger Bouillon、Annemieke Verstuyf
DOI:10.1016/s0960-894x(02)00221-4
日期:2002.6
The synthesis and biological activities of seco C-9,11,21-trisnor-17-methyl-1alpha,25-dihydroxyvitamin D-3 analogues (D-ring analogues) are described. (C) 2002 Elsevier Science Ltd. All rights reserved.
Visible-Light-Promoted Remote C–H Functionalization of <i>o</i>-Diazoniaphenyl Alkyl Sulfones
作者:Shaofu Du、Elizabeth Ann Kimball、Justin R. Ragains
DOI:10.1021/acs.orglett.7b02650
日期:2017.10.20
Visible-light irradiation of ortho-diazoniaphenyl alkyl sulfones in the presence of Ru(bpy)32+ results in remote Csp3–H functionalization. Key mechanistic steps in these processes involve intramolecular hydrogen atom transfer from Csp3–H bonds to aryl radicals to generate alkyl/benzyl radicals. Subsequent polar crossover occurs by single-electron oxidation of the alkyl/benzyl radicals to carbenium