Premium
Zur Reaktivität von Phosphaalkenyl‐ und Phosphavinyliden‐Komplexen des Molybdäns und Wolframs gegenüber dem Schwefelylid Me 2 S(O)=CH 2 Röntgenstrukturanalyse von
Author(s) -
Weber Lothar,
Matzke Thomas,
Boese Roland
Publication year - 1990
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.19901230415
Subject(s) - ylide , chemistry , reactivity (psychology) , molybdenum , sulfur , transition metal , crystal structure , stereochemistry , x ray crystallography , tungsten , medicinal chemistry , crystallography , inorganic chemistry , diffraction , catalysis , organic chemistry , medicine , physics , alternative medicine , pathology , optics
Transition‐Metal‐Substituted Acylphosphanes and Phosphaalkenes. XIV. – Transition‐Metal Sulfur Ylide Complexes, XXVIII. – Reactivity of Phosphaalkenyl and Phosphavinylidene Complexes of Molybdenum and Tungsten towards the Sulfur Ylide Me,S(O) = CH 2 . X‐ray Structure Analysis of The phosphavinyliden complexes (η 5 ‐C 5 H 5 )(CO) 2 M=P=C(SiMe 3 ) 2 [3, M = Mo ( a ); W ( b )] react with equimolar amounts of sulfur ylide Me 2 S(O)=CH 2 ( 2 ) to afford the red metallophosphane‐substituted sulfur ylides (η 5 ‐C 5 H 5 )(CO) 2 M=P[CH‐(SiMe 3 2 ][CH=S(O)Me 2 ] ( 5a, b ). Compounds 3a, b as well as 5a, b are trans‐formed to the metallaheterocycles (η 5 ‐C 5 H 5 )‐ ( 6a, b ) by excess of ylide. Constitution and configuration of 5 and 6 were established by spectroscopic means (IR, 1 H, 13 C, 31 P NMR and MS). In addition, the molecular structure of 6a was elucidated by single crystal X‐ray diffraction analysis.