Tag Archives: chiral

Carried solid chiral catalyst

Application Number  00128716 Application Date  2000.09.09 Publication Number  1289644 Publication Date  2001.04.04 Priority Information     International Classification  B01J31/18;B01J31/28;B01J37/00   Applicant(s) Name  Lanzhou Inst. of Chemicophysics, Chinese Academy of Sciences   Address     Inventor(s) Name  Wang Lailai;Li Shijie;Xia Chungu   Patent Agency Code  62002 Patent Agent  fang xiaojia AbstractA carried solid chiral catalyst for… Read More »

Method for splitting ibuprofen by two-component chiral reagent

Application Number: 00114429Application Date: 2000.03.16Publication Number: 1314336Publication Date: 2001.09.26Priority Information: International: C07B57/00;C07C51/42;C07C57/30Applicant(s) Name: Wuhan Univ.Address: Inventor(s) Name: Hu Xianming;Li Guihua;Wen JianPatent Agency Code: 42200Patent Agent: huang jianhanAbstract Certain amount of recemic ibuprofen is heated and refluxed together with two-component resolution agent in 1-2 times molar amount, so that the diastereomer salt of (S)-(+)-ibuprofen is made… Read More »

High-effective low-cost synthesis of chiral oxazoline-2-ketone compound

Application Number: 00116879Application Date: 2000.06.30Publication Number: 1281853Publication Date: 2001.01.31Priority Information: International: C07D263/20Applicant(s) Name: Shanghai Inst. of Organic Chemistry, Chinese Academy of SciencesAddress: Inventor(s) Name: Wu Yikang;Shen XinPatent Agency Code: 31002Patent Agent: wu shenzhongAbstract The present invention provides a high-effective low-cost synthesis method of chiral oxazoline-2-ketone compound. Said invention also provides its molecular formula and preparation… Read More »

Process for producing sherchulin with chiral naphthane one

Application Number: 00118079Application Date: 2000.06.08Publication Number: 1277188Publication Date: 2000.12.20Priority Information: 1999/6/9 US 60/138,340International: C07C211/57;C07C249/02;C07C251/20Applicant(s) Name: Pfizer Products Inc.Address: Inventor(s) Name: George J. KwileekPatent Agency Code: 11105Patent Agent: fan mengeAbstract This invention relates to a novel improved process for preparing the (+) enantiomer of N- 4-(3,4-dichlorophenyl)-3,4-dihydro-1(2H)-naphthalenylidenemethanamine by reacting the (+) enantiomer of 4-(3,4-dichlorophenyl)-3,4-dihydro-1(2H)-naphthalenone with monomethylamine and… Read More »

Preparation of chiral succinic acid derivative

Application Number: 00122681Application Date: 2000.08.15Publication Number: 1308066Publication Date: 2001.08.15Priority Information: 1996/7/4 EP 96110814.9; 1997/1/10 EP 97100301.7International: C07D233/76Applicant(s) Name: F. Hoffmann-La Roche AGAddress: Inventor(s) Name: Paul A. Brawn;Hans HillbertPatent Agency Code: 11105Patent Agent: huang yifenAbstract The present invention relates to a novel method of producing the formula I and novel intermediates for producing the same. A… Read More »

Epoxidizing catalyst for polymerizing chiral Xifu alkali-metal

Application Number: 00122944Application Date: 2000.08.30Publication Number: 1340380Publication Date: 2002.03.20Priority Information: International: B01J31/18;C07F7/28;C07F13/00Applicant(s) Name: Dalian Inst of Chemicophysics, Chinese Academy of SciencesAddress: Inventor(s) Name: Zheng Zhuo;Yao Xiaoquan;Chen HuilinPatent Agency Code: 21002Patent Agent: zhang chenAbstract An epoxidizing catalyst of polymerizing or chiral schiff base-metal features that it has 4 structures. Its advantages include not being degradated easily… Read More »

Process for preparing chiral separation fixed phase of molecular brand polymer

Application Number: 00122948Application Date: 2000.08.30Publication Number: 1340552Publication Date: 2002.03.20Priority Information: International: C08F220/06;C08F220/56Applicant(s) Name: Dalian Inst of Chemicophysics, Chinese Academy of SciencesAddress: Inventor(s) Name: Liu Xueliang;Wang Jinfang;Wang JundePatent Agency Code: 21002Patent Agent: zhang chenAbstract A chiral separation fixed phase of molecular brand polymer with higher moleculara recognizing power to ammino acid and its derivative is prepared… Read More »

Diphospholigand with ferrocene modified chiral pocket and its synthesis and application

Application Number: 00125766Application Date: 2000.10.25Publication Number: 1349994Publication Date: 2002.05.22Priority Information: International: C07F9/28;C07F17/00Applicant(s) Name: Shanghai Inst. of Organic Chemistry, Chinese Academy of SciencesAddress: Inventor(s) Name: Hou Xuelong;You ShuliPatent Agency Code: 31002Patent Agent: li changqunAbstract The present invention relates to the synthesis of a diphosphine ligand with ferrocene modified chiral pocket and its application. This type of… Read More »

Method for preparing chiral dichlorochrysanthemic acid

Application Number: 00110029Application Date: 2000.01.12Publication Number: 1303844Publication Date: 2001.07.18Priority Information: International: 2702;7C-5109C07;C07C61/35;C07C61/37;C07C61/40CApplicant(s) Name: Dalian Inst. of Chemical Physics, Chinese Academy of SciencesAddress: Inventor(s) Name: Shao Changping;Liu Ren;Pan GuizhiPatent Agency Code: 21002Patent Agent: zhang chenAbstract A method for preparing chiral R (+)-trans-dichloro chrysanthemic acid is characterized by using racemic (minus or plus)-dichlorochrysanthemic acid ester as raw… Read More »

Stable chiral aminobutyronitrile composition

Application Number: 00108178Application Date: 2000.04.27Publication Number: 1272313Publication Date: 2000.11.08Priority Information: 1999/5/3 US 09/303,850; 1999/5/3 US 09/304,401International: A01N47/40Applicant(s) Name: American Cyanamid Co.Address: Inventor(s) Name: W. H. Gastlok;P. J. Wepro;K. A. M. KrimoPatent Agency Code: 31100Patent Agent: chen wenjingAbstract There is provided a stable optically active composition comprising up to about 65% by weight of (R)2-amino-2,3-dimethylbutyronitrile and… Read More »

Preparation method of chiral imidazolidinone weedicide

Application Number: 00108177Application Date: 2000.04.27Publication Number: 1272496Publication Date: 2000.11.08Priority Information: 1999/5/3 US 09/303,967International: A01N43/50;C07D401/04Applicant(s) Name: American Cyanamid Co.Address: Inventor(s) Name: T. W. Drab;P. J. WeproPatent Agency Code: 31100Patent Agent: chen wenjingAbstract There is provided a process for the preparation of essentially enantiomerically pure imidazolinone herbicides having the R-configuration via (R)2-amino-2,3-dimethylbutyramide.

Chiral compounds and application of them as chiral doping agent in production of cholesterol type liquid crystal composite

Application Number: 00104739Application Date: 2000.03.24Publication Number: 1281858Publication Date: 2001.01.31Priority Information: 1999/3/25 DE 19913604.1International: A61K7/02;A61K7/06;A61K7/40;A61K47/22;C07D493/04;C09K19/32Applicant(s) Name: BASF AktiengesellschaftAddress: Inventor(s) Name: F. Mejel;P. Schumacher;F. PrechtlPatent Agency Code: 72001Patent Agent: tai gongAbstract A new chiral doping agents of formula (I) is represented by the formula Z1-Y1-(A1)m-Y2-M-Y3-X-Y4-(A2)n-Y5-Z2, in which the meanings of each letter are as defined in the… Read More »

Synthesis of chiral ring prepolymer

Application Number: 00102090Application Date: 2000.03.12Publication Number: 1263121Publication Date: 2000.08.16Priority Information: International: C08G6/00Applicant(s) Name: Jilin Univ.Address: Inventor(s) Name: Chen Chunhai;Ben Teng;Liu XincaiPatent Agency Code: 22201Patent Agent: liu chishengAbstract The present invention belongs to synthesis technology of chiral cyclic prepolymer. It is characterized by utilizing introduction of 4,4'-difluorobenzophennone or 4,4'-dicarboxylbenzophenone to substitute hydrogen on hydroxide radical in… Read More »