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- W2949843600 abstract "The construction of new or novelly functionalized annulated and bridged tricylic compounds by two consecutive C,C-bond formations (a and b in la, Scheme 1) is described. In a first step, chloroalkyl-substituted aminonitriles yielded pyrrolidines 8, 15a, 15b, 23, 25 and piperidine 18 by carbanionic ring closure (Schemes 5, 6, 7 and 8). Subsequent Friedel-Crafts cyclization transformed the β-aminonitriles 8, 15a, 15b, and 18 either directly or via their carboxylic acid derivatives to the indeno [1, 2-c]pyrrole, 2, 5-methano-3-benzazocine, benz [f]isoindoline and 1, 4-ethano-2-benzazapine skeletons 11, 16a, 16b and 21, respectively (Schemes 5, 6 and 7). By classical ring expansion reactions the pyrrolo [3, 4-c]isoquinoline and benzopyrano-[3, 4-c]pyrrole skeletons 28 resp. 31 were obtained from 11 (Scheme 9)." @default.
- W2949843600 created "2019-06-27" @default.
- W2949843600 creator A5055661527 @default.
- W2949843600 date "1982-04-06" @default.
- W2949843600 modified "2023-09-27" @default.
- W2949843600 title "ChemInform Abstract: SYNTHESIS OF PHENYL- AND BENZYL-SUBSTITUTED PYRROLIDINES AND OF A PIPERIDINE BY INTRAMOLECULAR C-ALKYLATION. SYNTHONS FOR TRICYCLIC SKELETONS" @default.
- W2949843600 cites W1967385340 @default.
- W2949843600 doi "https://doi.org/10.1002/chin.198214100" @default.
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