Tetrahedron

Cycloaddition von phenylarsinen an pentadiin-1, 4-one-3 und 3-methylenpentadiine-1, 4: Elektrocyclische reaktionen von 2, 3-bis-methylen-arsolenen-4

G Märkl, H Hauptmann

Index: Maerkl,G.; Hauptmann,H. Tetrahedron, 1976 , vol. 32, p. 2131 - 2136

Full Text: HTML

Citation Number: 5

Abstract

The radicalic cycloaddition of phenylarsine and trimethylsilylsubstituted phenylarsines to pentadiyn-1, 4-ones-3 yields the 2-methylene-arsolene-4-ones-3; these ketones react with diphenylketene to give the substituted 2, 3-bis-methylene-arsolenes-4, which undergo thermal electrocyclic reactions. The resulting benzannelated arsolenes are dehydrogenated to the corresponding arsoles, which can be isolated by reaction of phenylarsine with 3- ...