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Formation of substituted pyrroles from 5-aza- and 5-thia-2-cyclohexen-1-one derivatives

โœ Scribed by S. I. Zav'yalov; I. F. Mustafaeva; T. I. Skoblik

Book ID
112437185
Publisher
Springer
Year
1974
Tongue
English
Weight
176 KB
Volume
23
Category
Article
ISSN
1573-9171

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In two steps, 5,Sdimethyl-lH-pyrrol-2(5H)-one (3a) was prepared from 5,5-dimethylpyrrolidine-2,4-dione ( = dimethyltetramic acid; 4) in 71 % overall yield (Scheme 1 ) and further converted to N-substituted derivatives 3b-f viu acylation, alkylation, or methoxycarbonylation of its anion (Scheme 2). T