Isonitrile complexes materials

These complexes have been used as starting materials in the preparation of other alkoxy and phenoxy complexes, phenylimido complexes, analogous amine complexes, dioxotetrapyridinerhenium(V) salts and dioxobis(ethylene-diamine) rhenium (V) salts, cyano complexes of rhenium-(V), acetylacetone complexes, hydrides, carbonyls, and isonitrile complexes. The products of reactions using the materials described here as sources are normally easier to purify than those obtained by other methods. 

The previously mentioned thioether-based precursor complexes are used as starting materials however, instead of a carbene, an isonitrile is first coordinated to the gold atom. After this the resulting isonitrile complex, often still in situ, is further reacted with a secondary amine to form the desired carbene ligand (see Scheme 9.5). 

Coco, S Espinet, P Marb n-Alvarez, J.M. and Levelut, A.M. (1997) Effects of Isonitrile Substituents on Mesogenic Properties of Halogoldiisonitrile Complexes Calamitic and Discotic Liquid Crystals. Journal of Materials Chemistry, 7, 19-23. 

Isonitrile)gold(I) acetylide complexes. Journal of Materials Chemistry, 5,... 

A series of materials was synthesized in which isonitriles were complexed to tetracarbonyliron(O) (15 = 6, 8, 10, 12).75 ligands from which complexes 15a and 15b were obtained showed a nematic phase at short chain... 

The products of thermal decomposition of the chromium carbene adduct [(OC)5Cr=C(Cl)NEta] depend on whether the material is heated in solution or as a solid. In solution the carbyne complex [Cl(OC)4Cr=CNEtg] results, but the solid affords a mixture containing the isonitrile adduct [(OC)5Cr(C3 Et)]. The... 

Esterification at room temp, with tetrachloroaluminic acid ether complex has been described The alcoholysis of a-mono-alkylacetoacetates to the corresponding esters and alkyl acetates has been accomplished with excellent yields A new modification of the Curtius degradation avoids the prepn. of acid chlorides by using in their place carboxylic alkoxyformic anhydrides intermediates well-known in peptide chemistry. Among recent developments in this latter field are the use of mixed anhydrides prepared with diphenylketene an improved peptide synthesis via azides prepared with nitrosyl chloride or butyl nitrite instead of aq. sodium nitrite and a rapid synthesis directly from acid hydrazides with N-bromosuccinimide Oligopeptides and /5-lactams have been synthesized from simple starting materials and isonitriles,... 

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