An unsymmetrically substituted diphosphene: NMR spectroscopic data pertinent to the phosphorus-phosphorus double bond

AH Cowley, JE Kilduff, M Pakulski…

Index: Cowley, A. H.; Kilduff, J. E.; Pakulski, M.; Stewart, C.A. Journal of the American Chemical Society, 1983 , vol. 105, # 6 p. 1655 - 1656

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Citation Number: 38

Abstract

-1.0 Hz). The four-bond coupling between P and the Me carbons of the ortho-t-Bu groups is quite large (5.5 Hz) and suggestive of a through-space interaction. Compound 3 is not as stable as its symmetrical counterparts 1 and 2, undergoing decomposition in-2 days at ambient temperature to produce (2, 4, 6-(tB~)~ c~ H~) PH~ as the major product.