CAS: 42969-65-3; (R)-But-3-Yn-2-Ol

相似化合物

2914-69-4 603045-12-1 53487-52-8

上下游产品

CAS号591218-26-7 (R)-2-methylhex... | CAS号121522-26-7 (+)-4-trimethyl... | CAS号107033-47-6 trans-2-(p-Tolu... | CAS号16169-82-7 acetic acid,but... | CAS号598-32-3 3-丁烯-2-醇 | CAS号14898-79-4 (R)-(-)-仲丁醇

(R)-2-Methylhex-3-Yne-2,5-Diol置于potassium Carbonate体系中,用 甲苯 作为反应溶剂,以40%的收率获得产物(R)-(+)-3-丁炔-2-醇
参考文献: Process For The Production Of A Hydroxyalkyne By Coupling Reaction Between Acetaldehyde And A Terminal Alkyne[fr] Procede De Production D'Un Hydroxyalcyne Faisant Appel A Une Reaction De Couplage Entre De L'Acetaldehyde Et Un Alcyne Terminal
标题: Process For The Production Of A Hydroxyalkyne By Coupling Reaction Between Acetaldehyde And A Terminal Alkyne[fr] Procede De Production D'Un Hydroxyalcyne Faisant Appel A Une Reaction De Couplage Entre De L'Acetaldehyde Et Un Alcyne Terminal
摘要:本发明涉及一种用于将乙醛和末端炔烃进行偶联反应以产生羟基炔烃的方法,包括以下步骤:(I)在无溶剂的情况下,将末端炔烃与路易斯酸性金属盐在烷基胺配体和环状胺碱存在下反应,形成金属-炔基络合物,(II)向金属-炔基络合物中加入乙醛溶液.

专利信息

专利号:US-8273790-B2
优先权日:2005-01-14
标 题:Exo-selective synthesis of himbacine analogs
发明人：THIRUVENGADAM TIRUVETTIPURAM K; SUDHAKAR ANANTHA; LIM NGIAP KIE; KWOK DAW-IONG; WU GEORGE G; WANG TAO; HUANG MINGSHENG; GREEN MICHAEL D
权利人:THIRUVENGADAM TIRUVETTIPURAM K; SUDHAKAR ANANTHA; LIM NGIAP KIE; KWOK DAW-IONG; WU GEORGE G; WANG TAO; HUANG MINGSHENG; GREEN MICHAEL D; SCHERING CORP
摘要:This application discloses a novel process for the synthesis of himbacine analogs, as well as the compounds produced thereby. The synthesis proceeds by alternative routes including the cyclic ketal amide route, the chiral carbamate amide route, and the chiral carbamate ester route. The compounds produced thereby are useful as thrombin receptor antagonists. The chemistry disclosed herein is exemplified in the following synthesis sequence:

专利号:US-8329905-B2
优先权日:2006-06-30
标 题 :Synthesis of diethyl{[5-(3-fluorophenyl)-pyridine-2yl]methyl}phosphonate
发明人：YONG KELVIN H; ZAVIALOV ILIA A; YIN JIANGUO; FU XIAOYONG; THIRUVENGADAM THIRUVETTIPURAM K
权利人:YONG KELVIN H; ZAVIALOV ILIA A; YIN JIANGUO; FU XIAOYONG; THIRUVENGADAM THIRUVETTIPURAM K; MERCK SHARP & DOHME
摘要:This application discloses a novel process for the preparation of phosphonate esters useful as intermediates in the preparation of himbacine analogs, themselves useful as thrombin receptor antagonists. The chemistry taught herein can be exemplified by the following scheme: n nwherein R 9 is selected from alkyl, aryl heteroaryl and arylalkyl groups having 1 to 10 carbon atoms, and R 11 is selected independently for each occurrence from alkyl, aryl heteroaryl and arylalkyl groups having 1 to 10 carbon atoms and hydrogen, X 2 is Cl, Br, or I; X 3 is selected from Cl and Br; and PdL n is a supported palladium metal catalyst or a soluble heterogeneous palladium catalyst. The L-derivatizing reagent is a moiety which converts the alcohol functional group of compound 137D to any leaving group which can be displaced by a triorgano-phosphite phosphonating agent.

专利号:US-8618314-B2
优先权日:2005-01-14
标 题 :Exo- and diastereo-selective synthesis of himbacine analogs
发明人：WU GEORGE G; SUDHAKAR ANANTHA; WANG TAO; XIE JI; CHEN FRANK X; POIRIER MARC; HUANG MINGSHENG; SABESAN VIJAY; KWOK DAW-LONG; CUI JIAN; YANG XIAOJING; THIRUVENGADAM TIRUVETTIPURAM K; LIAO JING; ZAVIALOV ILIA; NGUYEN HOA N; LIM NGIAP KIE
权利人:WU GEORGE G; SUDHAKAR ANANTHA; WANG TAO; XIE JI; CHEN FRANK X; POIRIER MARC; HUANG MINGSHENG; SABESAN VIJAY; KWOK DAW-LONG; CUI JIAN; YANG XIAOJING; THIRUVENGADAM TIRUVETTIPURAM K; LIAO JING; ZAVIALOV ILIA; NGUYEN HOA N; LIM NGIAP KIE; MERCK SHARP & DOHME
摘要:This application discloses a novel process for the preparation of himbacine analogs useful as thrombin receptor antagonists. The process is based in part on the use of a base-promoted dynamic epimerization of a chiral nitro center. The chemistry taught herein can be exemplified by the following:

专利号:US-7678948-B2
优先权日:2006-06-30
标 题:Synthesis of 3-(5-nitrocyclohex-1-enyl) acrylic acid and esters thereof
发明人：THIRUVENGADAM TIRUVETTIPURAM K; WANG TAO; CHIU JOHN S; LIAO JING
权利人:SCHERING CORP
摘要:This application discloses provides a process for the introduction of nitro-group functionality into a compound which contains also a site of unsaturation and/or oxygen functionality by direct (one step) oxidation of an oxime functional group mediated by a molybdenum VI/VII peroxo complex, the process comprising:n (a) providing a substrate of Formula I containing an oxime functional group; nn n n n n n n n n n n n n n wherein R 1 and R 2 are selected independently from linear, branched or cyclic alkyl and linear, branched or cyclic alkenyl groups, optionally substituted, with the proviso that at least one of R 1 or R 2 contains a carbon/carbon double bond; and n n n (b) contacting said substrate of Formula I with a molybdenum oxidation complex, thereby oxidizing said oxime functional group to a nitro functional group to yield the structure of Formula III. n n n n n nWhere R 1 and R 2 are as defined above.

专利号:EP-2046804-B1
优先权日:2006-06-30
标题 :Synthesis of diethyl{[5-(3-fluorophenyl)-pyridine-2-yl]methyl} phosphonate used in the synthesis of himbacine analogs

专利号:WO-2008005348-A1
优先权日:2006-06-30
标 题:Synthesis of diethyl{ i5' (3 -fluorophenyl) -pyridine-2-yl] methyl} phosphonate used in the synthesis of himbacine analogs