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ChemInform Abstract: Stereoselective Synthesis of α-Alkylidene- and Substituted Alkylidene-γ-lactones.

✍ Scribed by Jakub Castulik; Ctibor Mazal

Publisher
John Wiley and Sons
Year
2010
Weight
30 KB
Volume
31
Category
Article
ISSN
0931-7597

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✍ F.-T. LUO; M.-W. WANG; Y.-S. LIU 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 KB

Stereoselective Synthesis of (Z)-α-Alkylidene-γ-butyrolactone from 2-Alkyn-1-one. -Reduction of the recently reported (Z)-3-iodo-3-alken-1ones (I) with sodium borohydride gives the corresponding alkenols (II) without loss of stereochemistry. These undergo a Pd(0)-catalyzed cyclization with CO to for