ISSN:
0009-2940
Keywords:
Alkynes, (triphenylstannyl)-
;
Rhodium(I) complexes, vinylidene
;
Rhodium(III) complexes, alkynyl(hydrido)-and bis(alkynyl)hydrido-
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Reaction of [RhCl(PiPr3)2]n (1) with stannylalkynes RC≡CSnPh3 [R = H, Me, Ph, CH2OH, CH2OMe, CMe2OH, CH(Me)OH, CH(Ph)OH, SiMe3, SnPh3] gives the vinylidenerhodium(I) complexes trans-[RhCl(=C=C(SnPh3)R)(PiPr3)2] (2a-j) in good to excellent yields. These compounds react with protic acids to give trans-[RhCl(=C=CHR)(PiPr3)2] and, for R = CH(Ph)OH, to give the allenylidene complex trans-[RhCl(=C=C=CHPh)-(PiPr3)2] (5). On treatment of 2b-j with PhHgCl, the heterodimetallic compounds [Rh(C≡C̊)(HgPh)Cl(PiPr3)2] (6a-i) are formed. The bis(alkynyl)rhodium(III) complexes [RhH(C≡CSi-Me3)(C≡CSnPh3)(py)(PiPr3)2] (9) and [Rh(C≡CSiMe3)(C≡C—CH2OMe)(SnPh3)(PiPr3)2] (10) are prepared from trans-[Rh-(C≡CSiMe3)(L)(PiPr3)2] (7, 8, L = py, C2H4) and HC≡CSnPh3 or Ph3SnC≡CCH2OMe, respectively. The crystal and molecular structures of trans-[RhCl(=C=C(SnPh3)CH2OMe)(PiPr3)2] (2e) and [Rh(C≡CCH2OMe)(HgPh)Cl(PiPr3)2] (6d) have been determined.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19941271010
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