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Preparation of unsaturated .alpha.-chloro acids and intramolecular [2 + 2] cycloadditions of the chloroketenes derived from them

โœ Scribed by Snider, Barry B.; Kulkarni, Yashwant S.

Book ID
126968854
Publisher
American Chemical Society
Year
1987
Tongue
English
Weight
604 KB
Volume
52
Category
Article
ISSN
0022-3263

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๐Ÿ“œ SIMILAR VOLUMES

Intramolecular [2 + 2] cycloaddition rea
Intramolecular [2 + 2] cycloaddition reactions of vinylketenes. stereo- and regiospecific preparation of vinylketenes from ฮฑ,ฮฒ-unsaturated acid chlorides.
โœ Yashwant S. Kulkarni; Beverly W. Burbaum; Barry B. Snider ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 270 KB

Treatment of a,P-unsaturated acid chlorides 5, 6, 14, 17, and 18 with NEt3 in toluene at reflux generates, stereo-and regiospecifically, the vinylketene which undergoes a facile intramolecular [2 + 21 cycloaddition.