Synthesis of 2′,3′-dideoxy-6′-fluorocarbocyclic nucleosides via Reformatskii–Claisen rearrangement
作者:Yi Yang、Feng Zheng、Feng-Ling Qing
DOI:10.1016/j.tet.2011.03.054
日期:2011.5
bioactive carbovir and abacavir were synthesized. The notable steps were the incorporation of fluoromethylene group by way of silicon-induced Reformatskii–Claisen rearrangement of allyl bromofluoroacetate, the construction of the carbocyclicring via ring-closing metathesis (RCM) and the introduction of base by Mitsunobu reaction.
.beta.-(Fluoromethylene)-5-hydroxytryptophan and derivatives and their
申请人:Merrell Dow Pharmaceuticals Inc.
公开号:US04822812A1
公开(公告)日:1989-04-18
This invention relates to pharmacologically-active novel compounds comprising .beta.-fluoromethylene-5-hydroxytryptophan and derivatives, to methods of inhibiting monoamine oxidase and to treating depression, and to pharmaceutical compositions containing the compounds.
Visible-Light-Mediated Dearomatization/Cyanation Cascade Reaction of Indoles: Access to Highly Functionalized Spiro-γ-lactam Indolines with Two Contiguous Sterically Congested Quaternary Carbon Stereocenters
作者:Qiang Wang、Yi Qu、Qing Xia、Hongjian Song、Haibin Song、Yuxiu Liu、Qingmin Wang
DOI:10.1002/adsc.201800478
日期:2018.8.6
protocol for visible‐light‐induced radical dearomatization/cyanation cascade reaction of indole derivatives is reported. This protocol provides straightforward access to gem‐difluorinated and cyanated 3,3’‐spirocyclic indolines with moderate to excellent diastereoselectivity and permits the construction of two contiguous stericallycongested quaternary carbon stereocenters.
Preparation of chloro- and bromo-fluoroacetyl chloride
申请人:E. I. Du Pont de Nemours and Company
公开号:US04122115A1
公开(公告)日:1978-10-24
An alkyl ester of a chloro- or bromo-fluoroacetic acid is reacted with chlorosulfonic acid to produce the corresponding acid chloride. Exemplary is the reaction of ethylchlorofluoroacetate with chlorosulfonic acid at 120.degree.-200.degree. C to produce chlorofluoroacetyl chloride.