Patents
Patents for C07C 68 - Preparation of esters of carbonic or haloformic acids (3,588)
02/2002
02/26/2002US6350893 Reaction of dialkyl carbonate with benzyl alcohol in the presence of basic catalyst
02/20/2002CN1336361A Prepn. of di (trichloromethyl) carbonate
02/19/2002US6348613 Process for producing diaryl carbonate
02/14/2002WO2000058259A9 Method and apparatus for preparing monofunctional aromatic haloformates
02/14/2002US20020019547 Skin disorders; reacting retinol with chloroformate compound
02/14/2002US20020019512 Diaryl carbonate product and production of polycarbonate
02/13/2002CN1335828A Process for continuously producing dialkyl carbonate and diol
02/12/2002US6346650 Method for making mixed high purity (meth)acrylic anhydrides
02/12/2002US6346638 Continuous multistage distillation of columns with ester interchange
02/12/2002US6346500 Catalyst system for producing aromatic carbonates
02/12/2002US6346499 Catalyst composition for producing diaryl carbonates using carboxylic acid amide as promoter
02/06/2002EP1178033A1 Process for the purification of diaryl carbonate and process for the production of polycarbonate
02/06/2002CN1334795A Method for preparation of carbonates by continuous process
02/06/2002CN1078884C Method for recovery of catalyst systems from diaryl carbonate-contg. reaction solutions by suspension crystallization
02/06/2002CN1078883C Method for recovery of catalyst systems from diaryl carbonate-contg. reaction mixtures by melt crystallization
02/06/2002CN1078882C Process for continuous production of diaryl carbonates
01/2002
01/31/2002US20020013468 Chemical intermediate for macrolactone antibiotic
01/30/2002EP1175387A2 Method of separating dimethyl carbonate and methanol
01/30/2002CN1333086A Catalyst for synthesizing methyl carbonate by methanol liquid phase oxidation oxonation
01/29/2002US6342623 Reacting alkylene carbonate with alkanol in presence of amorphous aluminosilicate catalyst comprising alkali metal and/or alkaline earth metal
01/23/2002EP1174406A1 Process for continuously producing dialkyl carbonate and diol
01/23/2002CN1332718A Method for making aromatic carbonates
01/23/2002CN1332717A Process for production of aromatic carbonates
01/22/2002CA2064872C Aryloxymethylcarbonochloridate ester intermediates, their production and use in synthesizing prodrugs and their use therefor
01/17/2002US20020007087 Method for manufacturing dialkyl carbonate
01/16/2002EP1171412A1 Process for preparing organic carbonates
01/16/2002CN1331672A Method for reprocessing reaction mixtures contg. diaryl carbonate
01/16/2002CN1331671A Method for reprocessing reaction mixtures contg. diaryl carbonate
01/16/2002CN1331670A Method for producing diaryl carbonates
01/09/2002CN1330624A Process for production of diaryl carbonates
01/09/2002CN1330623A Reclamation of metal catalysts used in production of diaryl carbonates
01/09/2002CN1330622A Recovery of hydroxyaromatic compound from aqueous extract solution
01/03/2002WO2002000596A2 A method for manufacturing dialkyl carbonate
01/02/2002EP1167339A2 Process for producing dialkyl carbonate
01/02/2002EP1165484A1 Method and apparatus for preparing monofunctional aromatic haloformates
01/02/2002EP1165483A1 Method for the production of aliphatic fluoroformates
01/02/2002EP1165218A1 Device for mixing and reacting multiphase gaseous and liquid mixtures and use of this device
01/02/2002CN1077097C Process for preparation of aromaltic carbonate
12/2001
12/19/2001CN1327441A Protection of Di-t-butyl dicarbonate against decomposition
12/19/2001CN1076340C Process for continuous production of aryl carbonates
12/19/2001CN1076339C Process for continuously preparing dialkyl carbonates and dioles
12/18/2001US6331535 Retinyl carbonate derivatives, preparation process and uses
12/13/2001WO2001094444A1 Method for producing aliphatic oligocarbonate diols
12/13/2001US20010051742 Norbornene ester such as 1-ethylcyclopentyl 3-acetoxy-3-(5-norbornen-2-yl)propionate for use as monomer in photoresist resin having good reactivity and radiation transparency using excimer laser as light source
12/13/2001US20010051740 Process for producing dialkyl carbonate
12/13/2001DE10027907A1 Production of aliphatic oligocarbonate diols, useful in the production of plastics, fibers, coatings and adhesives, comprises reaction of aliphatic diols with dimethyl carbonate in a multi-stage process.
12/12/2001EP0855384B1 Process for the preparation of aromatic carbonate
12/12/2001CN1326434A Continuous production of carbonate esters
12/12/2001CN1326433A Process for isolation and removal of unwanted water from chemical reaction
11/2001
11/28/2001EP0837893B1 Production and use of liquid oligocarbonates derived from dimer diols
11/28/2001CN1075486C Process for the prepn. of dimethyl carbonate
11/27/2001US6323358 Catalyst composition for producing aromatic carbonates
11/21/2001EP1156028A1 Method for manufacturing dialkyl carbonate
11/21/2001EP1154980A1 Method for producing symmetrical and asymmetrical carbonates
11/21/2001CN1322708A Preparation of di-tert-butyl dicarbonate
11/15/2001WO2001085825A2 Method of polycarbonate preparation
11/15/2001US20010041807 Catalytic carbonylation with oxygen and carbon monoxide of a phenolic compound
11/15/2001US20010041806 Process for producing diaryl carbonate
11/14/2001CN1322192A Manufacture of carbonate esters using cupric alkoxide
11/14/2001CN1322189A Phospine ligand promoted synthesis of tetraaryloxyalkane and diarylcabonates
11/13/2001US6315868 Distilling in the presence of an extractive distillation agent
11/08/2001US20010039343 Pesticides, fungicides, herbicides, insecticides, microbiocdes, drugs
11/07/2001CN1320594A Process for continuously preparing diethyl carbonate
11/07/2001CN1074310C Catalyst for synthetizing dimethyl carbonate from methanol and propylidene carbonate
10/2001
10/31/2001EP1149826A2 Ester compounds having alicyclic structure, and methods for preparing the same
10/31/2001EP1149824A1 Protection of di-t-butyl dicarbonate against decomposition
10/31/2001EP0854853B1 Process for producing dialkyl carbonates
10/30/2001US6310232 Contacting with an aqueous acidic solution comprising bromide ions, regenerating bromide source, and extracting said bromide source with an aqueous liquid; carbonylation reaction mixture containing phenol, bromophenol and diphenyl carbonate
10/30/2001US6310229 Lead halophenoxides and carbonylation catalyst and method for preparing and employing them
10/25/2001WO2001079149A2 Catalyst composition and method for producing diaryl carbonates, using bisphosphines
10/23/2001CA2043743C Process for producing dimethyl carbonate
10/18/2001WO2001077194A2 Polymerizable composition of allyl functional monomers
10/18/2001WO2001077060A1 Method of separating and recovering aromatic carbonate and production process
10/18/2001US20010031888 Comprising an iron source in the absence of a Group VIII B metal source (which can be expensive); can also include an inorganic co-catalyst, an ammonium halide and/or a base; cost efficiency
10/17/2001CN1073083C Process for prepn. of aryl carbonates
10/11/2001WO2000050376A9 Efficient synthesis of alkyl carbonates
10/10/2001EP1140782A1 Method for reprocessing reaction mixtures containing diaryl carbonate
10/10/2001EP1140781A1 Method for reprocessing reaction mixtures containing diaryl carbonate
10/10/2001EP1140780A1 Removal of lead from organic diaryl carbonate reaction mixtures
10/10/2001EP1140779A1 Method for producing diaryl carbonates
10/10/2001EP1140778A1 Process for the production of aromatic carbonates
10/10/2001EP1140777A1 Method for the preparation of carbonates by a continuous process
10/10/2001EP1140776A1 Method for making aromatic carbonates
10/10/2001EP1140775A1 Reclamation of metal catalysts used in the production of diaryl carbonates
10/10/2001EP1140774A1 Process for the production of diaryl carbonates
10/10/2001EP1140773A1 Recovery of hydroxyaromatic compound from aqueous extract solutions
10/10/2001EP1140745A1 Colchinol derivatives as vascular damaging agents
10/03/2001CN1072205C Process for separating dimethyl carbonate azeotrope system using regular packing tower
10/03/2001CN1072204C Synthesis method of diester carbonate
10/02/2001CA2045045C Process and catalyst for preparing organic carbonates
09/2001
09/27/2001WO2000040541A9 Method for making aromatic carbonates
09/26/2001CN1314338A Process for preparing diethyl carbonate
09/25/2001US6294684 Introducing reactant streams containing dialkyl carbonate, aromatic alcohol and transesterification catalyst to distillation to produce alkyl aryl carbonate and alkyl alcohol; recovering, distillation; recycling
09/19/2001CN1313788A Process and catalyst for making dialkyl carbonates
09/18/2001US6291392 Catalysts containing a platinum group metal and produced in a sol-gel method, as well as a method for producing diarylcarbonates
09/13/2001US20010021786 Reacting a dialkyl carbonate and an aromatic alcohol
09/07/2001WO2001064650A2 Synthesis of epothilones, intermediates thereto and analogues thereof
09/07/2001WO2001064618A1 Method and catalyst system for producing aromatic carbonates
09/07/2001WO2001064617A1 Method and catalyst system for producing aromatic carbonates
09/07/2001WO2001064616A1 Process for producing aromatic carbonate
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