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6,6-Heptamethylenetetrahydropyran-2,4-dione in the Synthesis of Benzo[f]pyrano[3,4-b]quinolines and Pyrano[4,3-b][4,7]phenanthrolines

✍ Scribed by N. G. Kozlov; F. S. Pashkovskii; K. N. Gusak; E. V. Koroleva; A. B. Tereshko; I. P. Lokot’

Book ID
111609228
Publisher
SP MAIK Nauka/Interperiodica
Year
2004
Tongue
English
Weight
66 KB
Volume
40
Category
Article
ISSN
1070-4280

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In the title compound, C~20~H~25~N~3~O~5~S, the pyrrolidine ring is __trans__-fused to the dihydropyran ring. The pyrrolidine ring adopts a twist conformation and the dihydropyran ring is in an envelope conformation. The tosyl group is attached to the pyrrolidine ring in a biaxial position and its b

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In the title compound, C~24~H~25~N~3~O~5~S, both the pyrrolidine and dihydropyran rings adopt envelope conformations, and are __cis__-fused. The tosyl group is equatorially attached to the pyrrolidine ring. The glide-related molecules are linked by C—H...O hydrogen bonds, forming a __C__(6) chain al