Polyhedron

… the reactivity of 2-amino-3-chloro-and 2, 3-dichloroquinoxalines towards Ph 2 PH and Ph 2 PLi and of the properties of diphenylphosphanyl-quinoxaline P, N and P, P …

MSS Adam, AD Mohamad, PG Jones, MK Kindermann…

Index: Adam, Mohamed Shaker S.; Mohamad, Ahmad Desoky; Jones, Peter G.; Kindermann, Markus K.; Heinicke, Joachim W. Polyhedron, 2013 , vol. 50, # 1 p. 101 - 111

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Citation Number: 3

Abstract

The synthesis of quinoxaline P, N ligands by monoamination of 2, 3-dichloroquinoxaline (1) to 2-amino-3-chloroquinoxalines 2a, b and the subsequent substitution of chlorine by a diphenylphosphanyl group was studied. Whereas the reaction of 2a, b with Ph2PH in the presence (or absence) of catalytic amounts of palladium acetate furnished only minor amounts of the expected ligands in favor of tetraphenyldiphosphane and dechlorinated ...