CAS: 66-27-3; Methyl Methanesulfonate

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62-50-0 926-06-7 1912-28-3

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CAS号67-56-1 甲醇 | CAS号124-63-0 甲基磺酰氯 | CAS号75-75-2 甲基磺酸 | CAS号35709-09-2 顺式-9-十八碳烯基甲烷磺酸酯 | CAS号861103-21-1 N-(2,2-dimethox... | CAS号616-42-2 亚硫酸二甲酯 | CAS号65411-49-6 四丁基甲磺酸铵 | CAS号74-88-4 碘甲烷 | CAS号124-41-4 甲醇钠 | CAS号102-82-9 正三丁胺 | CAS号19977-47-0 2-methoxysulfon... | CAS号67-56-1 甲醇 | CAS号74-87-3 氯甲烷 | CAS号115-10-6 二甲醚 | CAS号75-75-2 甲基磺酸 | CAS号75-93-4 methyl hydrogen... | CAS号15481-45-5 4-氯苯磺酸甲酯 | CAS号98-57-7 4-氯苯基甲基砜 | CAS号74-83-9 溴甲烷 | CAS号5539-53-7 乙酰甲磺酸

亚硫酸二甲酯置于三正丁胺体系中,用65%的收率获得产物甲磺酸甲酯
参考文献:Method For Producing Alkanesulfonic Acids
标题:Method For Producing Alkanesulfonic Acids
摘要:从二烷基亚磺酸酯制备烷磺酸的过程包括以下步骤:在适当催化剂的存在下重排二烷基亚磺酸酯,形成相应的烷基烷磺酸盐,然后水解得到相应的烷磺酸.

专利信息

专利号:US-7288661-B2
优先权日:2003-12-10
标 题 :Process for the synthesis of (2S,3aS,7aS)-1-[(S)-alanyl]-octahydro-1H-indole-2-carboxylic acid compounds and application in the synthesis of perindopril
发明人：DUBUFFET THIERRY; LECOUVE JEAN-PIERRE
权利人:SERVIER LAB
摘要:Process for the synthesis of compounds of formula (I): n nwherein R represents a hydrogen atom or a protecting group for the amino function.n n Application in the synthesis of perindopril and pharmaceutically acceptable salts thereof.

专利号:US-2009131688-A1
优先权日:2007-11-21
标 题 :Method for the synthesis of 4-benzofuran-carboxylic acid
发明人：BURGOS ALAIN; MARUANI MARTINE; PERRIN FLORENCE; FREIN STEPHANE
权利人:ZACH SYSTEM
摘要:The invention concerns a novel method for synthesis of 4-benzofuran-carboxylic acid or alkyl ester thereof. n This method is characterized in that a reaction for aromatization of a compound of formula (II) is performed for the synthesis of the compound of formula (I), according to the scheme A2 below: n n n n n n n n n n wherein R independently represents hydrogen or a linear or branched C 1 - 15 alkyl group. n With the invention, it is possible to industrially synthesize 4-benzofuran-carboxylic acid or alkyl ester thereof with good yield and very good purity.

专利号:EP-2666771-A1
优先权日:2012-05-24
标题 :Synthesis of Aminocyclopentanetriol Derivatives
发明人：STERK DAMJAN; CASAR ZDENKO
权利人:LEK PHARMACEUTICALS
摘要:The present invention relates to the field of organic synthesis and describes the synthesis of specific intermediates suitable for the preparation of triazolopyrimidine compounds such as ticagrelor. nThe present invention provides in particular a process for the preparation of a compound of formula Vn ncomprising: na) providing a compound of formula IVn n, and nb) reducing the compound of formula IV with activated zinc in the presence of copper to give the compound of formula V.

专利号:US-9278972-B2
优先权日:2011-12-23
标题 :Synthesis of triazolopyrimidine compounds
发明人：MARAS NENAD; GAZIC SMILOVIC IVANA; STERK DAMJAN
权利人:LEK PHARMACEUTICALS
摘要:The present invention relates to the field of organic synthesis and describes the synthesis of specific intermediates suitable for the preparation of triazolopyrimidine compounds such as ticagrelor.

专利号:US-7102023-B2
优先权日:1999-11-24
标 题:Protecting groups useful in the synthesis of polysaccharides, natural products, and combinatorial libraries
发明人：BUCHWALD STEPHEN L; PLANTE OBADIAH J; SEEBERGER PETER H
权利人:MASSACHUSETTS INST TECHNOLOGY
摘要:One aspect of the present invention relates to optionally substituted halogenated benzyl halides and the like. These compounds are useful as halogenated benzyl ether-based protecting groups for a variety of functional groups. Another aspect of the present invention relates to use of said protecting groups in an orthogonal protecting group strategy for the synthesis of complex molecules that comprise a number of suitable functional groups. Another aspect of the present invention relates to saccharides bearing various arrays of protecting groups of the present invention. Another aspect of the present invention relates to a method of synthesizing an oligosaccharide or glycoconjugate, comprising the steps of: using a saccharide bearing at least one protecting group of the present invention to glycosylate a second molecule to give a product comprising said saccharide; and removing a protecting group of the present invention from said product.

专利号:US-7173059-B2
优先权日:2003-05-08
标题:Intermediates useful in the synthesis of HIV-protease inhibitors and methods for preparing the same
发明人：ALBIZATI KIM FRANCIS; BABU SRINIVASAN
权利人:AGOURON PHARMA
摘要:Optically active 3-amino-butene and 1,2-dihydroxy-3-amino-butane intermediate compounds, useful in the synthesis of HIV-protease inhibitors and methods of preparing these intermediate compounds are disclosed.