A new method for the direct synthesis of imines from alcohols and amines is described where hydrogen gas is liberated. The reaction is catalyzed by the ruthenium N-heterocyclic carbene complex [RuCl2(IiPr)(p-cymene)] in the presence of the ligand DABCO and molecular sieves. The imination can be applied to a variety of primary alcohols and amines and can be combined with a subsequent addition re...

Abstract For sustainable production of chemicals like hydrocarbons and oxygenates from renewable carbon sources electricity Fischer‐Tropsch synthesis is focused in current research. Aiming for this purpose, the development supported powdered shaped catalysts low‐temperature value‐added higher alcohols was addressed study. Promising support materials α‐Al 2 O 3 , SiO ZrO SiC were assessed influe...

An efficient synthetic method for successful synthesis of amine denderon on SBA-15 and related Pd (II) complex has been developed. This modified mesoporous material was characterized by various techniques such as TEM, XRD, atomic absorption spectroscopy, N2 adsorption-desorption, and FT-IR. The catalytic activities of the prepared catalysts were investigated by employing aerobic oxidation of al...

 A simple, mild and practical procedure has been developed for the synthesis of symmetrical and unsymmetrical ethers by using DMSO, TBAI in the presence of K2CO3. We extended the utility of  Potassium carbonate as an efficient base for the preparation of ethers. A wide range of alkyl aryl and dialkyl ethers are synthesized from treatment of aliphatic alcohols and phenols with various alkyl hali...

The first total synthesis of the sphingolipid biosynthesis inhibitor fumonisin B(1) has been achieved. This convergent synthesis utilizes oxonia Cope rearrangements to prepare two key homoallylic alcohols, which are then functionalized to the primary components A and B for cross-coupling. Other highlights of our approach include a new and efficient synthesis of the diprotected tricarballylic ac...

The synthesis of new optically pure ferrocenyl diphosphines have been realized from (R)-(+)-N,Ndimethylaminoethylferrocene. Particularly, dissymmetric ferrocenyl diphosphines have been synthesized. The diphosphines have been used as ligands in asymmetric transfer hydrogenation of acetophenone in the presence of Ru catalysts. © 2006 Elsevier Science. All rights reserved ——— * Corresponding autho...

The studying of enzymatic esterification of carboxylic acids and higher alcohols was performed by esterase Saccharomyces cerevisiae in water-organic medium. Investigation of the enzyme specificity to acetic substrates showed the best result with acetic acid in esterification reactions with ethanol whereas within other carboxylic acids the esterification decreased with acids: hexanoic > pentanoi...

Studies towards the synthesis of epothilone A via organoboranes have been described. A modified procedure for the large-scale preparation of B-gamma,gamma-dimethylallyldiisopinocampheylborane from prenyl alcohol has been developed. This reagent, upon reaction with various aldehydes, provides the corresponding alpha,alpha-dimethylhomoallylic alcohols in high enantioselectivities. The application...