Phosphorus, Sulfur and Silicon and the Related Elements p. 489 - 492 (1996)
Update date:2022-09-26
Topics:
Kawashima, Takayuki
Soda, Tomokazu
Kato, Katsuhiro
Okazaki, Renji
Pentacoordinate 1,2-azaphosphetidines bearing the Martin ligand were synthesized by the intramolecular dehydration of the corresponding β-amino phosphine oxides with Mitsunobu reagent (Ph3P-EtO2CN=NCO2Et). The X-ray crystallographic analysis of 1,2,4,4,-tetraphenyl derivative shows that it has a distorted trigonal bipyramidal structure with oxygen and nitrogen atoms at apical positions. Their thermolyses gave the corresponding olefins along with a cyclic iminophosphorane, which was readily hydrolyzed to give the cyclic phosphinate and aniline.
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(1996)