CAS: 67-51-6; 3,5-Dimethyl-1H-Pyrazole

相似化合物

1453-58-3 38693-82-2 2820-37-3

上下游产品

3,5-dimethyl-1H-pyrazole-4-carboxylic acid isoniazid ethanol (E)-N'-(4-oxopentan-2-ylidene)isonicotinohydrazide 2-(3,5-dimethyl-1H-pyrazol-1-yl)butanedioic acid 1-ethyl-3,5-dimethylpyrazole 1-(Hydroxymethyl)-3,5-dimethylpyrazole (3,5-dimethyl-1H-pyrazol-1-yl) (o-tolyl)methanone

乙酰丙酮置于一水合肼体系中,用 四氢呋喃 作为反应溶剂,以69 %的收率获得产物3,5-二甲基吡唑
参考文献:通过羧酸自由基脱羧进行 Raft 聚合**
标题:通过羧酸自由基脱羧进行 Raft 聚合**
摘要:通过羧酸的自由基脱羧,实现了小分子和聚合物基材的丙烯酸酯和丙烯酰胺聚合物的受控接枝.这些反应以高效率和低分散度进行,一步即可产生高度官能化的聚合物.
DOI:10.1002/anie.202317071

专利信息

专利号:US-5139940-A
优先权日:1989-10-26
标题 :Activation compounds and methods of synthesis of activation compounds
发明人：ISAACS STEPHEN T; CIMINO GEORGE D; METCHETTE KENNETH C; TESSMAN JOHN W
权利人:ISAACS STEPHEN T; CIMINO GOERGE D; METCHETTE KENNETH C; TESSMAN JOHN W
摘要:The invention is directed to isopsoralen compound compositions that contain a variety of substitutions which yet permit their binding to nucleic acid polymers. Reaction conditions that activate these bound isopsoralens results in covalent crosslinking to the nucleic acid polymers. The resultant complex is inhibited from being a template for the template-directed enzymatic synthesis of a complementary nucleic acid polymer. Beside the isopsoralens compositions, the invention includes their synthesis, the nucleic acid complex production and detection, and the above inhibitory method of use of the isopsoralens.

专利号:US-8158817-B2
优先权日:2003-12-24
标 题 :Synthesis of acylureas and composition comprising acylureas
发明人：BERNARD JEAN-MARIE; REVELANT DENIS; AMOUYAL CEDRIC
权利人:BERNARD JEAN-MARIE; REVELANT DENIS; AMOUYAL CEDRIC; PERSTORP FRANCE
摘要:The invention relates to a process for the synthesis of a polyisocyanate composition comprising acylureas. According to the invention, a starting composition comprising a compound having at least two isocyanate functional groups is subjected to a reaction with at least two acid functional groups, with at least one of the acid functional groups having a pKa value of less than or equal to 3, and at least one of the acid functional groups having a pKa value of more than 3 and less than or equal to 6, at a temperature at least equal to 50 ° C., wherein the acid functional group having a pKa value of less than or equal to 3 and the acid functional group having a pKa value of more than 3 and less than or equal to 6 are present on two different acids or on the same acid.

专利号:US-7935837-B2
优先权日:2008-04-30
标 题:Process for synthesis of androstane 17-β carbothioic acid and relative compounds thereof
发明人：HSU NAI-HSUAN; PANG CHU-YI; WU CHIEN-JEN; HUANG CHI-JEN; HSU CHIA-JUNG; LEE PEIMIN
权利人:CORUM INC
摘要:A process for synthesis of androstane 17-β carbothioic acid is provided. The process includes mixing an androstane 17-β carboxylic acid and a coupling reagent, and adding an alkanethioic acid to form an androstane 17-β carbothioic acid, wherein the androstane 17-β carbothioic acid has the formula (I): n n n n n n n n n n n n wherein R 1 represents hydrogen or haloalkyl groups, R 2 represents C 1-8 linear alkyl groups, C 1-8 branched alkyl groups, C 1-6 unsaturated acyclic groups or aromatic groups, R 3 represents hydrogen or hydroxyl, R 4 represents hydrogen, bromine, chlorine or fluorine and R 5 represents hydrogen, bromine, chlorine or fluorine. The process is a one-pot reaction.

专利号:US-5597931-A
优先权日:1992-03-30
标 题:Total synthesis of taxol and analogues thereof
发明人：DANISHEFSKY SAMUEL J; MASTERS JOHN; YOUNG WENDY; LINK J THOMAS; ISAACS RICHARD; SNYDER LAWRENCE B
权利人:SLOAN KETTERING INST CANCER
摘要:The present invention provides three basic routes for the total synthesis of taxol having the structure: ##STR1## The present invention also provides the intermediates produced in the above processes, processes for synthesizing these intermediates as well as analogues of taxol and nortaxol.

专利号:US-5488116-A
优先权日:1992-03-30
标 题:Total synthesis of taxol and analogues thereof
发明人：DANISHEFSKY SAMUEL J; BORNMANN WILLIAM G; QUENEAU YVES; MAGEE THOMAS V; KROL WALTER J; MASTERS JOHN J; JUNG DAVID K
权利人:SLOAN KETTERING INST CANCER
摘要:The present invention provides three basic routes for the total synthesis of taxol having the structure: ##STR1## The present invention also provides the intermediates produced in the above processes, processes for synthesizing these intermediates as well as analogues of taxol and nortaxol.

专利号:US-5527924-A
优先权日:1992-03-30
标题 :Total synthesis of taxol
发明人：DANISHEFSKY SAMUEL J; BORNMANN WILLIAM G; QUENEAU YVES; MAGEE THOMAS V; KROL WALTER J
权利人:SLOAN KETTERING INST CANCER
摘要:The present invention provides two basic routes for the total synthesis of taxol having the structure: The present invention also provides the intermediates produced in the above processes, processes for synthesizing these intermediates as well as analogs to taxol. Both the intermediates and analogs to taxol may prove to be valuable anticancer agents.