1,4,2-Diazaphospholidine-3,5-diones and Related Compounds: A Lecture on Unpredictability in Catalysis
作者:Frank U. Richter
DOI:10.1002/chem.200900039
日期:2009.5.18
Whereas 1‐organyl‐phospholanes and 1‐organyl‐2,3‐dihydro‐1H‐phospholes catalyze isocyanate oligomerization, the reaction of isocyanates with 1‐organyl‐2,5‐dihydro‐1H‐phospholes results in the formation of 1,3‐dienes and a novel class of P‐heterocycles, 1,4,2‐diazaphospholidine‐3,5‐diones. Isothiocyanates and carbodiimides exhibit analogous behavior. The resultant species readily form P‐oxides, P‐sulfides
The reaction of 1-substituted 3,4-dimethyl-Δ<sup>3</sup>-phospholens with diethyl peroxide: a correlation between rate and<sup>31</sup>P nuclear magnetic resonance shift