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Paper | Regular issue | Vol 24, No. 10, 1986, pp.2831-2834
Published online, 1st January, 1970
DOI: 10.3987/R-1986-10-2831
Synthesis of Novel N-Heteroatomic Cannabinol Analogues

Marie-Claude Bellassoud-Fargeau, Bernadette Graffe, Marie-Claude Sacquet, and Pierre Maitte*

*associé au CNRS, 4 Place Jussieu, Laboratoire de Chimie des Hétérocycles, Université P. et M. Curie, case courrier 43, 4 Place Jussieu, F-75252 Paris Cedex 05, France

Abstract

Cyclization of 2,2-dimethyl-3-pyrrolidinomethylene-5-hydroxy-7-pentyl-4-chromanone 2 with guanidine, formamidine, acetamidine and benzamidine hydrochlorides in the presence of 2 eq. of sodium ethoxide afforded novel 5H-[1]benzopyrano[4,3-d]pyrimidines 4a-d in good yields.