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Reactivity of a Phosphanylcarbene (λ 5 ‐Phosphaacetylene) with Lewis Acids: X‐Ray Crystal Structures of the First Carbene‐Gallane Complex and C ‐Gallyl‐Substituted Phosphorus Ylide
Author(s) -
Cowley Alan H.,
Gabbaï François P.,
Carrano Carl J.,
Mokry Ladd M.,
Bond Marcus R.,
Bertrand Guy
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199405781
Subject(s) - reactivity (psychology) , lewis acids and bases , carbene , ylide , chemistry , phosphorus , medicinal chemistry , crystal structure , x ray , stereochemistry , crystallography , organic chemistry , catalysis , medicine , physics , alternative medicine , pathology , quantum mechanics
A remarkably diverse reactivity toward Lewis acids is exhibited by the phosphanylcarbene (R 2 N) 2 PC̈SiMe 3 (R c ‐C 6 H 11 ). The methylated Lewis acids MMe 3 (M Al, Ga, In) undergo 1,2 addition reactions to form the C‐substituted phosphorylides 1 (X Me), while the corresponding chlorides MCl 3 form the first stable phosphanylcarbene–Lewis acid complexes 2 (X Cl).