CAS: 762-42-5; Dimethyl But-2-Ynedioate

相似化合物

142-45-0 7218-52-2 31555-05-2

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反-2,3-二溴丁烯二酸二甲酯置于锌体系中,用 四氢呋喃 作为反应溶剂,化学反应 2.0H,以93%的收率获得产物丁炔二酸二甲酯
参考文献:乙炔二羧酸手性酯的合成
标题:乙炔二羧酸手性酯的合成
摘要:研发了制备乙炔二羧酸酯的通用方法,并且已经以优异的产率制备了几种酯.制备了双-(甲基(S)-乳糖基),双-(甲基(R)-扁桃基)和双薄荷基酯,以及非手性二芳基和二烷基酯.通过在室温或回流下,使用锌或锌汞齐在thf中的2,3-二溴消除反应,由相应的二溴富马酸酯合成酯.通过将二溴富马酰氯与相应的醇酯化来制备二溴富马酸酯.
DOI:10.1016/s0040-4039(00)73402-2

专利信息

专利号:US-2020148541-A1
优先权日:2017-06-01
标题 :An approach to a bottom-up synthesis of nanocarbons
发明人：GIDRON ORI; PHATANGARE SUNITA; DISHI OR; BEDI ANJAN
权利人:YISSUM RES DEV CO OF HEBREW UNIV JERUSALEM LTD
摘要:Provided is a method for the synthesis of a Ï€-conjugated system from oligofurans, under conditions involving cycloaddition.

专利号:US-8153839-B2
优先权日:2005-09-14
标题:Method for synthesis of keto acids or amino acids by hydration of acetylene compound
发明人：OGO SEIJI; FUKUZUMI SHUN-ICHI
权利人:OGO SEIJI; FUKUZUMI SHUN-ICHI; JAPAN SCIENCE & TECH AGENCY
摘要:An object of the present invention is to provide a method for synthesis of keto acids by hydration of an acetylene compound (acetylene-carboxylic acids) under mild conditions free from harmful mercury catalysts and a method for synthesis of amino acids from acetylene-carboxylic acids in a single container (one-pot or tandem synthesis). In one embodiment of the method according to the present invention for synthesis of keto acids, acetylene-carboxylic acids is hydrated in the presence of a metal salt represented by General Formula (1), n nwhere M 1 represents an element in Group VIII, IX, or X of the periodic table, and X 1 , X 2 , or X 3 ligand represents halogen, H 2 O, or a solvent molecule, and k represents a valence of a cation species, and Y represents an anion species, and L represents a valence of the anion species, and each of K and L independently represents 1 or 2, and k×m=L×n.

专利号:US-6872840-B1
优先权日:2003-09-17
标 题 :Synthesis of 8-membered carbocyclic compound having diexomethylene groups
发明人：CHO YONG SEO; CHANG MOON HO; KOH HUN YEONG; PAE AE NIM; KANG HYUN JUNG
权利人:KOREA INST SCI & TECH
摘要:The present invention relates to a synthesis of an 8-membered carbocyclic compound having diexomethylene groups, more particularly to a synthesis of an 8-membered carbocyclic compound having diexomethylene groups, a novel compound having the structure represented by the following Chemical Formula 1, from trimethylsilanylmethyl-allenol derivative by the intramolecular Prins cyclization using Lewis acid. The 8-membered carbocyclic compound is a useful intermediate for synthesis of other multicarbocyclic compounds. n n n In Chemical Formula 1, R 1 is a phenyl group, and R 2 and R 3 is a hydrogen atom, or R 1 , R 2 and R 3 may be connected with neighboring substituents to form a 5 to 10-membered aliphatic or aromatic ring.

专利号:US-7094913-B2
优先权日:2003-09-17
标题:Synthesis of 7-membered carbocyclic compound having diexomethylene groups
发明人：CHO YONG SEO; CHANG MOON HO; KOH HUN YEONG; PAE AE NIM; KANG HYUN JUNG
权利人:KOREA INST SCI & TECH
摘要:The present invention relates to a synthesis of a 7-membered carbocyclic compound having diexomethylene groups, more particularly to a synthesis of a 7-membered carbocyclic compound having diexomethylene groups, a novel compound having the structure represented by the following Chemical Formula 1, from trimethylsilanylmethyl-allenol derivative by the intramolecular Prins cyclization using Lewis acid. The 7-membered carbocyclic compound is a useful intermediate for synthesis of other multicyclic compounds. n n n n n n n n n n In Chemical Formula 1, R 1 is a C 1 to C 6 alkyl group, and R 2 and R 3 is respectively a hydrogen atom, or R 1 , R 2 and R 3 may be connected with neighboring substituents to form a 5 to 10-membered aliphatic or aromatic ring.

专利号:US-9206222-B2
优先权日:2009-06-29
标题:Solid phase peptide synthesis of peptide alcohols
发明人：CAUSSIL-AMBLARD MURIEL; MARTINEZ JEAN; TAILHADES JULIEN
权利人:CAUSSIL-AMBLARD MURIEL; MARTINEZ JEAN; TAILHADES JULIEN; CENTRE NAT RECH SCIENT
摘要:The present invention relates to the synthesis of depsipeptides on solid phase support. Said depsipeptides are then implicated in a solution phase O—N acyl shift enabling to obtain the corresponding peptide alcohols.

专利号:EP-0255715-B1
优先权日:1986-08-07
标题 :Process for the synthesis of heterocycles from palladocyclic complexes
摘要:Heterocylic rings are synthesised from palladocyclic complexes by reaction with alkynes, characterised in that the palladocyclic complexes are employed in the form of iodo or cationic complexes. The process applies in particular to the synthesis of nitrogenous heterocyclic rings.