๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Cyclobutenylideneammonium Salts from the Cycloadditions of Keteniminium Salts to Acetylenes

โœ Scribed by C. Hoornaert; Lic. Sc.; Dr. A. M. Hesbain-Frisque; Prof. Dr. L. Ghosez


Book ID
101546307
Publisher
John Wiley and Sons
Year
1975
Tongue
English
Weight
244 KB
Volume
14
Category
Article
ISSN
0044-8249

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1,3-Asymmetric induction in the intramol
โœ Pil-Jong Shim; Hee-Doo Kim ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 244 KB

Optically active bicyclo[4.2.0]octan-7-ones were synthesized by stereoselective intramolecular [2+2] cycloaddition of alkene-keteniminium salt derived from L-glutamic acid, based on 1,3-asymmelric induction. Synthetic application toward (+)-gibberellic acid key intermediate was also described.