A short and convenient access to a trans-hydrindane unit from the anti-meso-acetylmethyldivinylcyclopentane via a radical pathway

被引:11
作者
Chapelon, AS [1 ]
Ollivier, C [1 ]
Santelli, M [1 ]
机构
[1] Univ Paul Cezanne, Fac Sci & Tech St Jerome, Synth Organ Lab, Associe CNRS,UMR 6180, F-13397 Marseille 20, France
关键词
D O I
10.1016/j.tetlet.2006.02.076
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An efficient route for multigram synthesis of a trans-hydrindane unit, involving a selective 6-endo-trig alpha-carbonyl radical cyclization of the alpha-xanthyl ketone 10 derivating from the anti-meso-acetylmethyldivinylcyclopentane 9 through a xanthate group transfer, is achieved in good yield. Preparation of an advanced intermediate for the Julia-Kocienski Coupling, used in the elaboration of the trienic system of vitamin D (or calciferol) analogs, was materialized by conversion of the xanthate moiety to a 2-benzothiazole sulfonyl group. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2747 / 2750
页数:4
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