1,3-Dipolar cycloaddition reaction of 3,4-dihydro-6,7-dimethoxyisoquinoline ylide with olefins
- 1 January 1983
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- p. 1961-1966
- https://doi.org/10.1039/p19830001961
Abstract
2-Methoxycarbonylmethyl-3,4-dihydro-6,7-dimethoxyisoquinolinium ylide (2) in a concerted cycloaddition reaction of type π4s+π2s with dimethyl fumarate and dimethyl maleate gives the (4a)‘endo’-, (4b)‘exo-’, and (6a)‘endo’-pyrrolo [2,1-a] isoquinoline derivatives, respectively. The structure and conformation of the products have been determined by 1H, 13C, and 15N n.m.r. spectroscopy and X-ray diffraction for compound (4a).Keywords
This publication has 0 references indexed in Scilit: