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The behavior of 2-substituted-1,3-diphenylpropane-1,3-tione toward organophosphorus reagents

✍ Scribed by L. S. Boulos; R. Shabana; Y. M. Shaker

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
196 KB
Volume
11
Category
Article
ISSN
1042-7163

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✦ Synopsis

The reaction of 2-benzylidene-1,3-diphenylpropanetrione (1a) with phosphorus ylides 2ac afforded the new phosphonium ylides 4a-c. Trialkyl phosphites 3a-c react with 1a to give the respective dialkyl phosphonate products 5a-c. On the other hand, the olefinic compounds 6 and 7 were isolated from the reaction of 1b with Wittig reagents 2. Moreover, trialkyl phosphites reacted with 1b to give products 8a-c. Possible reaction mechanisms are considered, and the structural assignments are based on analytical and spectroscopic evidence.

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