Abstract
The reaction of substituted benzyl-, aroylmethyl-, or 1-phenetylisatins with hexaethyltriaminophosphine has been shown to lead to the formation of a library of 3,3′-biindolinylidene-2,2′-diones with functionalized benzyl-, aroylmethyl-, and 1-phenetyl fragments at the nitrogen atom.
GRAPHICAL ABSTRACT
ACKNOWLEDGMENTS
Financial support by the Council on Grants of the President of the Russian Federation (Grant MK-1670.2010.3) and by the Russian Foundation for Basic Research (Grant 09-03-00933) is gratefully acknowledged.
Notes
w = 1/[\σ 2(Fo2) + (0.0561P)2 + 0.0000P] where P = (Fo2 + 2Fc2)/3.