Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Patent applications |
Patent application number | Title | Published |
20150299822 | EXTRACTING AGENT FOR SEPARATING LITHIUM ISOTOPES AND USE THEREOF - The present invention discloses an extracting agent for separating lithium isotopes and an organic extraction phase containing the extracting agent; the organic extraction phase easily enriches | 10-22-2015 |
20150252055 | COMPOUNDS OF CHIRAL AROMATIC SPIROKETAL DIPHOSPHINE LIGANDS, PREPARATION METHODS AND USES THEREOF - Disclosed are aromatic spiroketal diphosphine ligands, preparation methods and uses thereof. The ligands have the structure of formula (I), in which R | 09-10-2015 |
20150105567 | OPTICALLY ACTIVE AXIALLY CHIRAL ALPHA-ALLENIC ALCOHOL, SYNTHESIS METHOD AND USE THEREOF - The present invention relates to an optically active axially chiral α-allenic alcohol, a synthetic method and use thereof. A method of preparing a high optically active chiral α-allenic alcohol by using propargyl alcohol, aldehyde and chiral α,α-diphenyl-L-prolinol under the protection of tert-butyldimethylsilyl with a mediator zinc bromide. The axially chiral α-allenic alcohol has the structural formula (I). The method of the present invention has the following advantages: the synthesis route is short, operations are simple, raw materials are readily available, separation and purification are convenient, the substrate has high generality, the total yield is high, and enantioselectivity and diastereoselectivity are high. The high optically active axially chiral α-allenic alcohol synthesized by adopting the method of the present invention can conveniently synthesize 2,5-dihydrofuran compounds having central chirality via complete chirality transfer, and at the same time can further be used to synthesize axially chiral allenic amine and allenic malonate compounds without reacemization. | 04-16-2015 |
20140221662 | INTERMEDIATE COMPOUNDS OF TAMIFLU, METHODS OF PREPARATION AND USES THEREOF - Chiral amino compounds, methods of preparation and uses thereof. Tamiflu can be obtained from the said compounds. Multi-substituted chiral tetrahydropyrrolyl amine which can be used as intermediate compounds of medicament can also be produced by the said compounds. | 08-07-2014 |
20140088319 | CATALYTIC SYSTEM FOR PREPARATION OF HIGH BRANCHED ALKANE FROM OLEFINS - The present invention discloses a catalytic system for preparing highly branched alkane from olefin, which contains novel nickel or palladium complexes. In the presence of the catalytic system, highly branched oily alkane mixture can be efficiently obtained from olefins (such as ethylene) under mild conditions. The alkane mixture has a low bromine number, and can be used as a processing aid(s) and lubricant base oil with high-performance. Provides also was a method for preparing the catalyst and a method for preparing an oily olefin polymer. | 03-27-2014 |
20140073500 | CLASS OF ORGANIC COMPOUNDS CONTAINING HETEROATOM AND ITS APPLICATIONS IN PREPARING SINGLE-SITE ZIEGLER-NATTA CATALYST - Organic compounds containing heteroatoms and their use in preparing Ziegler-Natta(Ziegler-Natta) catalyst with single activation center. The Ziegler-Natta olefin polymerization catalyst is preparing by adding organic or inorganic solid carrier or compound of them which is pre-activated by heating or pre-treated chemically, organic compound containing heteroatoms and metallic compound into magnesium compound/tetrahydrofuran solution. The Ziegler-Natta olefin polymerization catalyst prepared in the present invention is fluidizable powder and can prepare ethene homopolymer and copolymer of controllable construction with high catalytic activity, during homo-polymerization and combined polymerization with alpha-olefin of C | 03-13-2014 |
20120308589 | SINOMENINE DERIVATIVES, SYNTHETIC METHODS AND USES THEREOF - The invention relates to sinomenine derivatives, methods for their synthesis and their applications. The sinomenine derivatives include oxidation derivatives, and C-10 substituted sinomenine derivatives. Based on the readily oxidizable phenol group on sinomenine structure, using oxidation, oxidative dearomatization, or conjugated addition aromatization, one can introduce C-10 substitutions to synthesize the sinomenine derivatives. The sinomenine derivatives of the invention have the following structures: | 12-06-2012 |
20090137383 | CLASS OF ORGANIC COMPOUNDS CONTAINING HETEROATOM AND ITS APPLICATIONS IN PREPARING SINGLE-SITE ZIEGLER-NATTA CATALYST - Organic compounds containing heteroatoms and their use in preparing Ziegler-Natta (Ziegler-Natta) catalyst with single activation center. The Ziegler-Natta olefin polymerization catalyst is preparing by adding organic or inorganic solid carrier or compound of them which is pre-activated by heating or pre-treated chemically, organic compound containing heteroatoms and metallic compound into magnesium compound/tetrahydrofuran solution. The Ziegler-Natta olefin polymerization catalyst prepared in the present invention is fluidizable powder and can prepare ethene homopolymer and copolymer of controllable construction with high catalytic activity, during homo-polymerization and combined polymerization with alpha-olefin of C | 05-28-2009 |