98170-70-8Relevant academic research and scientific papers
Process for the preparation of lactones from higher alkenols
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, (2008/06/13)
Process for the preparation of lactones, having 4 or 5 carbon atoms in the ring by reacting a higher alkenol with a carbon monoxide containing gas in the presence of a catalytic system comprising (a) a palladium compound, (b) a bidentate phosphine, arsine and/or stibine, and (c) a protonic acid having a pKa 2.
Process for the carbonylation of ethylenically unsaturated compounds
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, (2008/06/13)
Process for the preparation of a carboxylic ester or acid by reacting an ethylenically unsaturated compound in which each of the carbon atoms of the carbon-carbon double bond is secondary or tertiary, with CO in the presence of an alkanol or water, respectively, and of a catalytic system prepared by combining:-, a) Pd and/or a Pd compound, b) a strong acid, except hydrohalogenic and carboxylic acids, and c) a bidentate ligand, using a molar ratio of acid to ligand of greater than 0.5.
Ultrasound in Phosphine Preparation. Simple Preparations of Some Bis(alkylphenylphosphino)alkanes
Chou, Ta-shue,Tsao, Chung-Huang,Hung, Su Chun
, p. 4329 - 4332 (2007/10/02)
Diphosphines of the class RPhP(CH2)nPPhR (n=2-6) have been prepared from reactions of the corresponding Ph2P(CH2)nPPh2 with alkali metall followed by alkylation.Ultrasound irradiation should be applied in the reductive cleavage stage so as to assure the purity of the final products.
