ISSN:
1572-901X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary The (n-Bu4N)[M(C6F5)3(CNR)] complexes (M=Pd or Pt; R=p-Tolyl, Me, Cy ort-Bu, prepared from (n-Bu4N)[M(C6F5)3(tht)] (tht = tetrahydrothiophene) and the appropriate isocyanide, RNC, prove to be unreactive towards benzylamine or MeOH. Thetrans-[Pd(C6F5)2(CNR)2] complexes react slowly with benzylamine to give the corresponding carbene complexestrans-[Pd(C6F5)2{C(NHR)(NHBz)}2], the rate of the reaction decreasing in the order:p-Tolyl 〉 Me 〉 Cy ≫t-Bu (for R=t-Bu the carbene complex cannot be prepared). In the corresponding Pt complexes a marked decrease in reactivity is observed and only the most reactive isonitrile complex (R=p-Tolyl) gives the carbene complextrans-[Pt(C6F5)2{C(NHTolyl-p)(NHBz)}2}. Thecis-[M(C6F5)2(CNTolyl)2] complexes do not show any change in reactivity compared to the correspondingtrans-complexes, and givecis[M(C6F5)2{C(NHTolyl-p)(NHBz)}2].
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00624474
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