Synthesis, structure, and reactivity of (phosphoranylidenephosphine)pentacarbonyltungsten complexes. Another access to the phosphorus-carbon double bond
作者:Pascal Le Floch、Angela Marinetti、Louis Ricard、Francois Mathey
DOI:10.1021/ja00162a051
日期:1990.3
The reaction of trialkylphosphines with 7-phosphanorbornadiene PW(CO) 5 complexes affords the corresponding phosphoranylidenephosphine complexes R 3 1 P=P(R)→W(CO) 5 . One such complex (R=CO 2 Et, R 1 =Et) has been investigated by X-ray crystal structures analysis. It shows a zwitterionic character with a long P=P bond. These phosphoranylidenephosphine complexes cleanly react at room temperature with