PHOENIX CHEMICALS LIMITED Patent applications |
Patent application number | Title | Published |
20140051869 | CONTINUOUS PROCESS FOR THE PRODUCTION OF BETA-KETO ESTERS BY CLAISEN CONDENSATION - A continuous process for producing compounds having the general formula (6) is provided: | 02-20-2014 |
20120309989 | CONTINUOUS PROCESS FOR THE PRODUCTION OF BETA-KETO ESTERS BY CLAISEN CONDENSATION - The invention concerns A continuous process for the production of compounds having the general formula (6): | 12-06-2012 |
20100094038 | SYNTHESIS - The present invention provides a method of preparing a sulfonyl ether comprising the steps of: v) reacting a sulfonic acid with an anhydride, under continuous vacuum distillation conditions, to form a carboxysulfonate; vi) reacting the carboxysulfonate with an optionally substituted cycloalkane ring containing at least 3 heteroatoms to form a sulfonyl ether pre-mix comprising a sulfonyl ether and at least two additional reaction products each containing at least one ether linkage; vii) subjecting the pre-mix to continuous vacuum distillation conditions to remove at least some of the additional reaction products from the sulfonyl ether pre-mix to provide a crude sulfonyl ether product; and viii) purifying the crude sulfonyl ether product. | 04-15-2010 |
20100016604 | PROCESS FOR THE MANUFACTURE OF HI-6 DIMETHANESULFONATE - The invention provides a process for the manufacture of H1 6 dimethanesulfonate comprising contacting an O-protected pyridine aidoxime compound with bis(methylsulphonoxymethyl)ether in a suitable solvent to form an intermediate compound, contacting said intermediate compound with isonicotinamide to form an O-protected HI 6 product precursor, and de-protecting the precursor to form HI 6 dimethanesulfonate. | 01-21-2010 |
20080281106 | Process for the Production of Asymmetric Transformation Catalysts - The present invention relates to process for the production of chiral ligands comprising providing a starting material of Formula (A): wherein X* is a chiral or achiral directing group; and (i) is an optionally substituted mono- or polycyclic aryl or cycloalkyl group; ortholithiating the substrate; converting the ortho-lithiated substrate to a phosphine group having the formula —PR | 11-13-2008 |