H. Takakura, Keishi Nomura, H. Tanino
Apr 9, 1999
Citations
0
Influential Citations
4
Citations
Journal
Tetrahedron Letters
Abstract
Abstract Treatment of uroporphyrinogen I octamethyl ester with 2-mercaptobenzothiazolylmethyl pyrrole derivative in the presence of silver (I) trifrate under anaerobic condition in dichloromethane for 20 h, followed by aerial oxidation of the products, gave a statistical mixture of uroporphyrin I∼IV octamethyl esters. It was proposed that this transformation proceeds through a spiro-pyrrolenine as a key intermediate.