Palladium-catalyzed synthesis of dibenzophosphole oxides via intramolecular dehydrogenative cyclization

Y Kuninobu, T Yoshida, K Takai

Index: Kuninobu, Yoichiro; Yoshida, Takuya; Takai, Kazuhiko Journal of Organic Chemistry, 2011 , vol. 76, # 18 p. 7370 - 7376

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Citation Number: 60

Abstract

Dibenzophosphole oxides were obtained from secondary hydrophosphine oxides with a biphenyl group by dehydrogenation via phosphine–hydrogen and carbon–hydrogen bond cleavage in the presence of a catalytic amount of palladium (II) acetate, Pd (OAc) 2. By using this reaction, a ladder-type dibenzophosphole oxide could also be synthesized by double intramolecular dehydrogenative cyclization.