共 6 条
Highly diastereoselective hetero-Diels-Alder reaction of buta-1,3-diene with N-glyoxyloyl-(2R)-bornane-10,2-sultam:: an efficient synthesis of homochiral (S)-3-[2-{(methylsulfonyl)oxy}ethoxy]-4-(triphenylmethoxy)-1-butanol methanesulfonate
被引:8
|作者:
Kosior, M
Malinowska, M
Józwik, J
Caille, JC
Jurczak, J
机构:
[1] Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland
[2] PPG SIPSY, F-49242 Avrille, France
[3] Polish Acad Sci, Inst Organ Chem, PL-01224 Warsaw, Poland
关键词:
D O I:
10.1016/S0957-4166(02)00746-2
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
The influence of Lewis acid on the diastereo selectivity of [4+2] cycloaddition of buta-1,3-diene to N-glyoxyloyl-(2R)-bornane-10,2-sultam was investigated and high levels of asymmetric induction were achieved. (S)-3-[2- (Methylsulfonyl)oxy}ethoxyl-4-(triphenylmethoxy)-1-butanol methanesulfonate were synthesized in 15% overall yield, applying as a crucial step the above-mentioned [4+2] cycloaddition catalyzed by ZnBr2. (C) 2003 Elsevier Science Ltd. All rights reserved.
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页码:239 / 244
页数:6
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