CAS: 56598-53-9; Penta-1,4-Diyn-3-Ol
相似化合物
42969-65-3 2914-69-4 27301-54-8物理性质
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CAS号109-94-4 甲酸乙酯 | CAS号4301-14-8 乙炔基溴化镁 | CAS号4301-15-9 acetylene-bis-m... | CAS号624-67-9 炔丙醛 | CAS号74-86-2 乙炔 | CAS号33555-85-0 penta-1,2-dien-4-yne | CAS号33576-71-5 penta-1,4-diyn-3-one | CAS号56598-54-0 acetic acid,pen...合成工艺路线路线简述
📜Acetylene-Bis-Magnesium Bromide,甲酸乙酯置于乙醚体系中,化学反应生成 1,4-戊二炔-3-醇
参考文献:Lespieau,Bulletin De La Societe Chimique De France,1939,Vol. <5>6,P. 947
标题:Lespieau,Bulletin De La Societe Chimique De France,1939,Vol. <5>6,P. 947
海关参考信息
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专利信息
专利号:US-6482950-B1
优先权日:1991-05-06
标 题 :Squarylium compounds, and processes and intermediates for the synthesis of these compounds
发明人：GARCIA PAULINA P; LEE JOHN W; MARSHALL JOHN L; MCGOWAN DONALD A; PUTTICK ANTHONY J; SPENCER THOMAS K; STROUD STEPHEN G; TELFER STEPHEN J; ZURAW MICHAEL J
权利人:POLAROID CORP
摘要:Squarylium compounds of the formula: n wherein Q 1 and Q 2 are each independently a pyrylium, thiopyrylium, selenopyrylium, benzpyrylium, benzthiopyrylium or benzselenopyrylium nucleus, and R 1 and R 2 are each independently an aliphatic or cycloaliphatic group, can be prepared by reacting a squaric acid derivative of the formula: n with a compound of the formula Q 2 CH 2 R 2 in the presence of a base. The derivatives of Formula II may be prepared by condensing a 2,3,4,4-tetrahalocyclobut-2-en-1-one with a compound of the formula Q 1 CH 2 R 1 in the presence of a base to produce a compound of the formula: n wherein Q 1 and R 1 are as defined above, and X represents chlorine or bromine, and hydrolyzing the compound of Formula III. Alternatively, the derivatives of Formula II may be prepared by reacting a diester, monoacid chloride monoester or diacid chloride of squaric acid with a compound of the formula Q 1 CH 2 R 1 in the presence of a base, followed by hydrolysis of the resultant monoacid chloride or monoester derivative of the compound of Formula II to the parent compound.
专利号:US-5231190-A
优先权日:1991-05-06
标题:Squarylium compounds, and processes and intermediates for the synthesis of these compounds
专利号:US-5919950-A
优先权日:1991-05-06
标 题 :Squarylium compounds, and processes and intermediates for the synthesis of these compounds
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📌 第三方产品分析报告
主要参考文献
参考标题:The Synthesis And The Electronic Spectra Of 1, 1′-Dianthrylpoly-Ynes作者:Shuzo Akiyama,Masazumi Nakagawa |发布日期:1967.2
摘要:The Synthesis Of 1, 1′-Dianthryldi- And Tetra-Acetylenes Has Been Reported Previously By The Present Authors. Now, 1, 1′-Dianthryltri-, Penta- And Hexa-Acetylenes Have Been Synthesized In Order To Complete The Series Of 1, 1′-Dianthrylpoly-Ynes. It Is Well Known That The Square Of The Wavelength Of The Longest Absorption Maxima, λmax In The Electronic Spectra Of Some Series Of Poly-Enes And Poly-Ynes
合成参考文献
参考文献:10.1021/jo802103g
摘要:Oh CH, Karmakar S. Au(I)-catalyzed hydrative rearrangement of 1,1-diethynylcarbinol acetates to functionalized cyclopentenones and allenones. J Org Chem. 2009 Jan 02;74(1):370–4. doi: 10.1021/jo802103g.
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