An improved synthesis of (2E,4Z)-6-(benzyloxy)-4-bromohexa-2,4-dien-1-ol

被引:9
作者
Clarke, Paul A. [1 ,2 ]
Rolla, Gabriele A. [1 ,2 ]
Cridland, Andrew P. [2 ]
Gill, Andrew A. [1 ]
机构
[1] Univ York, Dept Chem, York YO10 5DD, N Yorkshire, England
[2] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England
基金
英国工程与自然科学研究理事会;
关键词
functionalised dienes; hexacyclinic acid; (E)-3-hydroxyprop-1-enylboronic acid; scaleable synthesis;
D O I
10.1016/j.tet.2007.06.071
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An improved synthesis of (2E,4Z)-6-(benzyloxy)-4-bromohexa-2,4-dien-1-ol has been devised. This new route increases the throughput and yield of the diene product by circumventing a low yielding preparation of boronic acid intermediate as well as removing the need to use multi-gram quantities of highly toxic thallium salts. In the process of developing this new route, a higher yielding preparation of ( E)-3-hydroxyprop-1-enylboronic acid was also achieved. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:9124 / 9128
页数:5
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