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Reaction of ketimine anions with carbonyl and thiocarbonyl compounds

✍ Scribed by Riaz Ahmed; Walter Lwowski

Publisher: Elsevier Science
Year: 1969
Tongue: French
Weight: 89 KB
Volume: 10
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)88467-7

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✦ Synopsis

received in UK for publication 4 August 1969) A number of chemical conversions most notably the Wittig reactionare best formlated as proceeding through a four-membered cyclic transition state or intermediate. We wish to report a new class of such conversions : The reaction of ketimine anions with carbonyl and thiocarbonflcompounds, and the related thermolytic decomposition of N-acylketimines. When the lithium salts of ketimines were warmed in dimethylformamide, the corresponding ketones, dimsthylting and lithium cyanide were formed. Diethylformamide and dimethylthioformamide react anaiogously : RR'-N-Li

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