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A one step synthesis of 4-oxo-Δ2-pyrrolines from iminoesters

✍ Scribed by .P.C. Srivastava; C.M. Gupta; A.P. Bhaduri

Book ID
104247684
Publisher
Elsevier Science
Year
1971
Tongue
French
Weight
116 KB
Volume
12
Category
Article
ISSN
0040-4039

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✦ Synopsis

Kjaer2 reported that the reaction of ethyl <-ethoxy-P-phenylethylideneaminoacetate (I: R = II) with morpholine led to the formation of unexpected products, and he proposed that the data could be best presented by structure 11 or III, However, on mechanistic consideration it was difficult to visualise the functionalisation of one of the morpholine methylenes under the mild experlmental conditions used and, therefore, the assigned structure II or II1 seemed untenable.

This prompted us to reinvestigate this reaction.

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