Catalytic conversion of isocyanates to carbodiimides by cyclopentadienyl manganese tricarbonyl and cyclopentadienyl iron dicarbonyl dimer

AKF Rahman, KM Nicholas

Index: Rahman, A.K. Fazlur; Nicholas, Kenneth M. Tetrahedron Letters, 2007 , vol. 48, # 34 p. 6002 - 6004

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Citation Number: 13

Abstract

Decarbonylations of organic isocyanates by low-valent metal complexes have been observed and suggested to generate nitrene derivatives. For example, Ni(PPh 3 ) 2 (PhNCO) decarbonylates to produce Ni(CO) 2 (Ph 3 P) 2 and possibly [Ph–N]. 8 Similarly, WCl 2 (PMe 2 Ph) 4 reacts with isocyanates to afford the imido carbonyl complex WCl 2 (NR)(CO)(PMe 2 Ph) 2 . 9 Decarbonylation of isocyanate has also been observed in the isolation of the structurally characterized ...