CAS: 5057-98-7; Cis-Cyclopentane-1,2-Diol

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5057-99-8 4065-92-3 930-46-1

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📜(1S,2R)-2-(Methoxymethoxy)Cyclopentan-1-Ol 在 (I-Prs)Bbr体系中,用 二氯甲烷作为反应溶剂,以73%的收率获得cis-1,2-Cyclopentanediol
参考文献:Methods For The Interconversion Of Protective Groups. Transformation Of Mem Ethers Into Isopropylthiomethyl Ethers Or Cyanomethyl Ethers
标题:Methods For The Interconversion Of Protective Groups. Transformation Of Mem Ethers Into Isopropylthiomethyl Ethers Or Cyanomethyl Ethers
摘要:
Doi:10.1016/S0040-4039(01)91133-5

专利信息

专利号:US-8115002-B2
优先权日:2006-09-20
标 题:Preparation of substituted morphinan-6-ones and salts and intermediates thereof
发明人：WANG PETER X; MOSER FRANK W; CANTRELL GARY L; GROTE CHRISTOPHER W
权利人:WANG PETER X; MOSER FRANK W; CANTRELL GARY L; GROTE CHRISTOPHER W; MALLINCKRODT LLC
摘要:The present invention is directed to processes for the synthesis of morphinan-6-ones and salts, intermediates, and analogs thereof.

专利号:US-9051656-B2
优先权日:2009-07-23
标题 :Electrochemical synthesis of aryl-alkyl surfacant precursor
发明人：BHAVARAJU SAI; KARANJIKAR MUKUND; CHITTA PALLAVI
权利人:BHAVARAJU SAI; KARANJIKAR MUKUND; CHITTA PALLAVI; CERAMATEC INC
摘要:An aryl-alkyl (R—Ar) hydrocarbon is prepared by an electrosynthesis process in an electrolytic cell having an alkali ion conductive membrane positioned between an anolyte compartment configured with an anode and a catholyte compartment configured with a cathode. An anolyte solution containing an alkali metal salt of an alkyl carboxylic acid and an aryl compound is introduced into the anolyte compartment. The aryl compound may include an alkali metal salt of an aryl carboxylic acid, an arene (aromatic) hydrocarbon, or an aryl alkali metal adduct (Ar − M + ). The anolyte solution undergoes electrolytic decarboxylation to form an alkyl radical. The alkyl radical reacts with the aryl compound to produce the aryl-alkyl hydrocarbon.

专利号:US-7838677-B2
优先权日:2005-03-10
标 题:Processes for preparing morphinans and intermediates thereof
发明人：WANG PETER XIANQI; MOSER FRANK W; CANTRELL GARY L; BAO JIAN
权利人:MALLINCKRODT INC
摘要:The present invention is directed to processes for the synthesis of morphinans. In particular, a process for cyclizing a β,γ-bicyclic ketone compound to form a nordihydrothebainone product using the Grewe cyclization reaction is improved by forming a reaction mixture comprising a β,γ-bicyclic ketone compound, a cyclizing acid and a water scavenging cyclization additive. In one embodiment, the Grewe transformation occurs in the presence of an acid anhydride as the cyclization additive. Further, the present invention is directed to processes for converting α,β-bicyclic ketone compounds (e.g., by-products of the Grewe cyclization reaction) to β,γ-bicyclic ketone compounds, wherein the β,γ-bicyclic ketone compounds may be recovered to further undergo Grewe cyclization and form the nordihydrothebainone product.

专利号:US-2011226633-A1
优先权日:2009-07-23
标 题 :Electrochemical synthesis of aryl-alkyl surfacant precursor

专利号:EP-2319825-A1
优先权日:2008-07-17
标 题 :Enzymatic synthesis of enantiomerically enriched derivatives of cis- and trans-cyclopentane-1,2-diamines

专利号:WO-2013092900-A1
优先权日:2011-12-23
标 题 :Synthesis of triazolopyrimidine compounds