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Original method for the ring enlargement of cyclic ketones

โœ Scribed by J.L. Laboureur; A. Krief

Publisher
Elsevier Science
Year
1984
Tongue
French
Weight
193 KB
Volume
25
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

Tha,Uium ethotide in chLo?~o6olun wa6 6ound Xo bL a pa&icLLeahey vdu.ab.k combivation doh the 4eahrrangtment 06 B-hy&oxyb&nides to ke..tona.

We recently found 1 that a-selenoalkyllithiums bearing two alkyl groups on the carbanionic center are valuable reagents for the ring enlargement of cyclic ketones 2-4 (Scheme 1). The key step of this transformation is without contest the rearrangement of the B-hydroxyselenides which takes place with silver tetrafluoroborate at reflux of chloroform.

๐Ÿ“œ SIMILAR VOLUMES

New method for the ring enlargement of c
New method for the ring enlargement of cyclic ketones
โœ D. Labar; J.L. Laboureur; A. Krief ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 240 KB

A bmp& &JO b&p @ocedtie wkLch &owb thehug en&mgement 05 cg&c h&ones .U d&c&abed wtuch ties advan.tage 06 the kcgh nucf.coph.&utg 04 a-beiiWw~kg~-.~O%IMM towahdb ctibongL compoundd and 06 a nov& Rhwpou.-kon ma&on wkcch OCCWLA on tithe hebting 6-hgdkoxgbelencdea.