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Synthesis of β-halobutenolides and their Pd(0)/CuI-catalyzed cross-coupling reactions with terminal alkynes. A general route to β-(1′-alkynyl)butenolides

✍ Scribed by Shengming Ma; Zhangjie Shi; Zhanqian Yu

Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
160 KB
Volume
40
Category
Article
ISSN
0040-4039

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Synthesis of β-halobutenolides and their
Synthesis of β-halobutenolides and their Pd(0)-catalyzed cross-coupling reactions with terminal alkynes and organozinc reagents. A general route to β-substituted butenolides and formal synthesis of cis-whisky lactone
✍ Shengming Ma; Zhangjie Shi; Zhanqian Yu 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 654 KB

An improved procedure for the efficient synthesis of I~-halobutenolides was developed. The Pd(0)catalyzed coupling reactions of 13-halobutenolides with terminal alkynes or organozinc reagents, i.e., 1-alkenyl, aryl, and alkyl zinc reagents, to afford 13-substituted butenolides were carefully studied