Pentacoordinated molecules. 95. Influence of phosphorus-sulfur bonding in the formation of octahedrally coordinated cyclic pentaoxyphosphoranes

TK Prakasha, RO Day, RR Holmes

Index: Prakasha; Day, Roberta O.; Holmes, Robert R. Journal of the American Chemical Society, 1993 , vol. 115, # 7 p. 2690 - 2695

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Citation Number: 80

Abstract

Abstract: Formation of new pentaoxyphosphoranes X [RIR~ C~ H~ O]~ P (OP~)~(X= S, R l= R2= t-Bu for 1; X= S, R1= t-Bu, R2= Me for 2; X= S, RI= R2= Me for 3; X= CH2, RI= R2= t-Bu for 4) containing sulfur-bridged eight-membered rings was achieved by oxidative addition reactions of triphenyl phosphite with diols in the presence of N-chlorodiisopropylamine in yields ranging from 70 to 80%. 1 contains 0.5 mol of EtzO of crystallization. X-ray analysis ...