Übergangsmetall-substituierte diphosphene XXXVI. Cyclopropanierung der P=P-bindung in den [3 + 2]-cycloaddukten aus metallodiphosphenen und hexafluoraceton, (η5-C5R5)(CO)(O) (M Fe; R5 Me4Et) (M Ru; R5 Me5)
摘要:
The [3 + 2] cycloadducts (eta(5)-C(5)R(5))(CO)M-P(=PMes*)OC(CF3)(2)C(O) (M = Fe, R(5) = Me(4)Et (IIIb)) (M = Ru; R(5) = Me(5) (IVa)) and diazomethane undergo a [2 + 1]-cycloaddition at the P=P bond to afford the spiro compounds (eta(5)-C(5)R(5))(CO)M-P-CH2-P-(Mes*)OC(CF3)(2)C=O (VII and VIII).