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Diastereoselective zinc-mediated Barbier-type allylation and propargylation of 3-formylcephalosporins
被引:8
作者:
Keltjens, R
Vadivel, SK
de Gelder, R
Klunder, AJH
Zwanenburg, B
机构:
[1] Univ Nijmegen, NSR Inst Mol Struct Design & Synth, Dept Organ Chem, NL-6525 ED Nijmegen, Netherlands
[2] Univ Nijmegen, NSR Inst Mol Struct Design & Synth, Dept Inorgan Chem, NL-6525 ED Nijmegen, Netherlands
关键词:
aldehydes;
allylations;
diastereoselectivity;
lactams;
antibiotics;
zinc;
D O I:
10.1002/ejoc.200200503
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
We describe the allylation and propargylation of 3-formylce-phalosporins under zinc-mediated, aqueous Barbier conditions, from which the corresponding homoallylic alcohols are produced in good yields and with good-to-excellent diastereoselectivity. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003).
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页码:1749 / 1758
页数:10