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Synthese, Struktur und Reaktivität von Diphosphiranen
Author(s) -
Streubel Rainer,
Nieger Martin,
Niecke Edgar
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931260314
Subject(s) - chemistry , trimethylsilyl , reactivity (psychology) , isomerization , medicinal chemistry , methylene , derivative (finance) , stereochemistry , nucleophilic substitution , nucleophile , organic chemistry , catalysis , pathology , medicine , alternative medicine , financial economics , economics
Synthesis, Structure, and Reactivity of Diphosphiranes The 1,1‐diamino‐1,2‐diphospha‐2‐propen (2,6‐Me 2 C 5 H 8 N) 2 P – PC(SiMe 3 ) 2 ( 3 ) is obtained by treatment of bis(2,6‐dimethyl‐piperidino)(trimethylsilyl)phosphane ( 1 ) with [bis(trimethylsilyl)methylene]chlorophosphane ( 2 ). Compound 3 readily undergoes thermally isomerization to the diphosphirane 2,6‐ Nucleophilic substitution of the P 1‐chloro function of 1‐chloro‐2‐(diisopropylamino)1‐3,3‐bis(trimethylsilyl)diphosphirane ( 6 ) leads to alkyl, amino, phosphanyl, and arsanyl derivatives 7a – d . The corresponding hydrogen derivative 7e is formed by reduction of 6 with tri‐ n 1‐butylstannane. The molecular structure of 7c as well as the NMR data of the diphosphiranes are discussed.