Highly reactive tris-carbene Co(I) complexes [(TIMENaryl)Co]Cl react with organic azides to yield monomeric Co(III) imido complexes [(TIMENaryl)Co(NAr')](BPh4) (aryl = mes, xyl; Ar = -C6H4-CH3, -C6H4-OCH3). The cobalt-imido fragment in these complexes is electrophilic and, as a result, the imido group readily inserts into the cobalt-carbene bond, yielding bis-carbene imine cobalt complexes.

The reaction of Na2MoO4 with 2,2'-oxydianiline (2-aminophenylether), (2-NH2C6H4)2O, LH4, in DME (DME = 1,2-dimethoxyethane) in the presence of Et3N and Me3SiCl afforded either the bis(imido) molybdenum(vi) complex {Mo(L)Cl2(DME)} (), where L = (2-NC6H4)2O, or the molybdenum(v) salt [Mo(L')Cl4][Et3NH] (), where L' = [(2-NH2C6H4)(2-NC6H4)O], depending on the work-up method employed. The same diam...

Addition of B(C6H5)3.H2O to U(NtBu)2I2(THF)2 provides U(NtBu)(O)I2(THF)2, a complex with a trans arrangement of the oxo and imido ligands. A DFT study on the Ph3PO adduct, U(NtBu)(O)I2(Ph3PO)2, reveals that there are six bonding orbitals in the O=U=N interaction, much like the bis(imido) N=U=N interaction. However, the calculations suggest that the multiple bonding in the oxo imido complexes is...

Ru=O complexes have been demonstrated to be competent oxidants for oxidation of saturated hydrocarbons and epoxidat ion of alkenes . Photoexcitation of transdioxoosmium(V1) gives rise to super-oxidizing complexes having EO >2.2 V vs. n.h.e.. Some cationic RuZN and OsZN complexes are good model system for study of the mechanism of metalcatalysed oxidation of ammonia to nitrite and activation of ...

Deprotonation of the parent titanium imido ((tBu)nacnac)Ti≡NH(Ntolyl2) ((tBu)nacnac(-) = [ArNC(t)Bu]2CH; Ar = 2,6-(i)Pr2C6H3) with KCH2Ph forms a rare example of a molecular titanium nitride as a dimer, {[K][((tBu)nacnac)Ti≡N(Ntolyl2)]}2. From the parent imido or nitride salt, the corresponding aluminylimido-etherate adduct, ((tBu)nacnac)Ti≡N[AlMe2(OEt2)](Ntolyl2), can be isolated and structura...

chlorogenic acid, a pharmacologically important compound, is a phenolic compound that occurs in certain commonly used medicinal herbs. we looked for the presence of this compound in the callus cultures of varthemia persica dc (var. persica ). we have evaluated the conditions for establishment of callus cultures of v. persica and the in vitro production of chlorogenic acid. callus was initiated ...

Reaction of 7-hydroxy-4-methyl coumarin with amido/ imido alcohols in ethanol containing concentrated hydrochloric acid afforded 8-aralkyl amido/imido-alkyl-7-hydroxy-4-methyl-coumarins (1a-f). Interaction of 1a-f with hydrazine hydrate in pyridine resulted in 1-amino-8-aralkyl amido/imido-alkyl-7-hydroxy-4-methyl-2-oxo-quinolines (2a-f). Treatment of 2 with formaldehyde in ethanol resulted in ...