CAS: 760-67-8; 2-Ethylhexanoyl Chloride

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2-乙基-己酸稀土盐置于氯化亚砜体系中,化学反应生成 2-乙基己酰氯
参考文献:Hen配合物催化的酰氯对醚的酰基裂解
标题:Hen配合物催化的酰氯对醚的酰基裂解
摘要:发现rh络合物是醚与酰氯的c-O键的酰基化裂解的有效催化剂.当在催化量的rebr(co)5存在下使无环醚与酰氯反应时,无环醚的c-O键的酰基裂顺利进行,从而以中等至非常好的收率得到了相应的酯.类似地,使用re 2 O 7催化剂将环醚酰基氯酰化裂解,得到高产率的相应的氯取代的酯.
DOI:10.1016/j.Tet.2011.07.072

专利信息

专利号:US-9783634-B2
优先权日:2012-02-15
标题 :Synthesis of photovoltaic conjugated polymers
发明人：WANG SHUANGXI; SHI CHENJUN; CHEN RUBY; ZHANG JUNLIAN; WANG WEI; WU YUE; HUANG HUI; PALKAR AMIT; HE TING
权利人:PHILLIPS 66 CO; SOLARMER ENERGY INC
摘要:A method of making a fluorothieno[3,4-b]thiophene derivatives and photovoltaic polymers containing same using 3-bromothiophene-2-carboxylic acid as a starting material. This synthetic route provides an easier synthesis as well as greater yield and a purer product, which produces superior results over the prior art less pure products. The resulting materials can be used in a variety of photovoltaic applications and devices, especially solar cells.

专利号:US-2007015798-A1
优先权日:2005-02-25
标 题 :Efficient and stereoselective process for large scale synthesis of (3R)-3-(2,3-dihydrobenzofuran-5-yl)-1,2,3,4-tetrahydropyrrolo[3,4-b]quinolin-9-one derivatives
发明人：LI XUN; LEMAIRE SEBASTIEN; MARKO ISTVAN; WILLEMSENS ALBERT
权利人:LI XUN; LEMAIRE SEBASTIEN; MARKO ISTVAN; WILLEMSENS ALBERT
摘要:This invention relates to an efficient process for large scale stereoselective production of (3R)-3-(2,3-dihydrobenzofuran-5-yl)-1,2,3,4-tetrahydropyrrolo[3,4-b]quinolin-9-ones and key intermediates used for the preparation of benzofuranyl pyrroloquinolones as potent and selective PDE5 inhibitors for the treatment of erectile dysfunction, as well as pharmaceutical compositions and methods of treatment utilizing these compounds.

专利号:US-10829429-B2
优先权日:2018-11-13
标 题:Synthesis of triethylene glycol bis(2-ethylhexanoate)
发明人：CHAKRABORTY SUMIT; ADAMS STEVEN J; HEMBRE ROBERT THOMAS; BARNICKI SCOTT DONALD; JENKINS DAVID ALAN
权利人:EASTMAN CHEM CO
摘要:A process for the transesterification of methyl-2-ethylhexanoate with triethylene glycol to produce triethylene glycol di-2-ethylhexanoate is provided. In the process, methyl-2-ethylhexanoate is combined with triethylene glycol to form a first mixture. The first mixture is heated in the presence of a catalyst to form a second mixture comprising methanol and triethylene glycol di-2-ethylhexanoate. Methanol is separated from the second mixture to yield triethylene glycol di-2-ethylhexanoate. Na2CO3, Cs2CO3, K2CO3, Rb2CO3, sodium methoxide or titanium isopropoxide are suitable catalysts.

专利号:US-4451392-A
优先权日:1982-09-30
标题:Synthesis of triconjugated dienones and novel intermediates used in said process
发明人：EVERS WILLIAM J; STORK GILBERT; MOOKHERJEE BARJA D; HEINSOHN JR HOWARD H
权利人:INT FLAVORS & FRAGRANCES INC
摘要:Described is a process for preparing triconjugated dienones defined according to the structure: wherein R1 represents C1-C8 alkyl, phenyl or phenyl methyl and wherein R2 represents hydrogen or C1-C5 lower alkyl; and wherein the wavy lines are indicative of a 'cis' or a 'trans' juxtaposition of the R2, methyl, acyl or vinyl moieties about one or both of the carbon-carbon double bonds which process involves the reaction of an acyl halide having the structure: (wherein X represents chloro) with a substituted or unsubstituted prenyl ester having the structure: wherein R3 represents C1-C5 alkyl in the presence of an aluminum chloride catalyst and a methylene dichloride solvent in order to form the novel intermediate genus defined according to the structure: then dehydrohalogenating the compound defined according to the structure: using an alkali metal carbonate and a dimethylformamide solvent in order to form the novel compound genus having the structure: wherein one of the dashed lines represents a carbon-carbon double bond and the other of the dashed lines represents a carbon-carbon single bond; and then dehydroacyloxylating the compound having the structure: in order to form the compound having the structure: the dehydroacyloxylation step taking place in the presence of an alkali metal carbonate and dimethylformamide solvent.

专利号:US-4560791-A
优先权日:1982-09-30
标题:Synthesis of triconjugated dienones and intermediates used in said process
发明人：EVERS WILLIAM J; STORK GILBERT; MOOKHERJEE BRAJA D; HEINSOHN JR HOWARD H
权利人:INT FLAVORS & FRAGRANCES INC
摘要:Described is a process for preparing triconjugated dienones defined according to the structure: wherein R1 represents C1-C8 alkyl, phenyl or phenyl methyl and wherein R2 represents hydrogen or C1-C5 lower alkyl; and wherein the wavy lines are indicative of a 'cis' or a 'trans' juxtaposition of the R2, methyl, acyl or vinyl moieties about one or both of the carbon-carbon double bonds which process involves the reaction of an acyl halide having the structure: (wherein X represents chloro) with a substituted or unsubstituted prenyl ester having the structure: wherein R3 represents C1-C5 alkyl in the presence of an aluminum chloride catalyst and a methylene dichloride solvent in order to form the novel intermediate genus defined according to the structure: then dehydrohalogenating the compound defined according to the structure: using an alkali metal carbonate and a dimethylformamide solvent in order to form the novel compound genus having the structure: wherein one of the dashed lines represents a carbon-carbon double bond and the other of the dashed lines represents a carbon-carbon single bond; and then dehydroacyloxylating the compound having the structure: in order to form the compound having the structure: the dehydroacyloxylation step taking place in the presence of an akali metal carbonate and dimethylformamide solvent.

专利号:US-4467820-A
优先权日:1982-09-30
标题 :Synthesis of triconjugated dienones and novel intermediates used in said process
发明人：EVERS WILLIAM J; STORK GILBERT; MOOKHERJEE BRAJA D; HEINSOHN JR HOWARD H
权利人:INT FLAVORS & FRAGRANCES INC
摘要:Described is a process for preparing triconjugated dienones defined according to the structure: wherein R1 represents C1-C8 alkyl, phenyl or phenyl methyl and wherein R2 represents hydrogen or C1-C5 lower alkyl; and wherein the wavy lines are indicative of a 'Cis' or a 'trans' juxtaposition of the R2, methyl, acyl or vinyl moieties about one or both of the carbon-carbon double bonds which process involves the reaction of an acyl halide having the structure: with a substituted or unsubstituted prenyl ester having the structure: wherein R3 represents C1-C5 alkyl in the presence of an aluminum chloride catalyst and a methylene dichloride solvent in order to form the novel intermediate genus defined according to the structure: then dehydrohalogenating the compound defined according to the structure: using an alkali metal carbonate and a dimethylformamide solvent in order to form the novel compound genus having the structure: wherein one of the dashed lines represents a carbon-carbon double bond and the other of the dashed lines represents a carbon-carbon single bond; and then dehydroacyloxylating the compound having the structure: in order to form the compound having the structure: the dehydroacyloxylation step taking place in the presence of an alkali metal carbonate and dimethylformamide solvent.