CAS: 133-13-1; Diethyl Ethylmalonate

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CAS号75-03-6 碘乙烷 | CAS号105-53-3 丙二酸二乙酯 | CAS号74-96-4 溴乙烷 | CAS号109-72-8 正丁基锂 | CAS号1462-12-0 乙氧亚甲基乙酰乙酸乙酯 | CAS号917-65-7 甲基二氯化铝 | CAS号594-19-4 叔丁基锂 | CAS号105-54-4 丁酸乙酯 | CAS号105-58-8 碳酸二乙酯 | CAS号26103-77-5 2-乙基-3-氧代琥珀酸二乙酯 | CAS号110450-00-5 diethyl 2-[(4-c... | CAS号3586-58-1 2-乙基丙烯酸 | CAS号57-44-3 巴比妥 | CAS号3232-84-6 尿唑 | CAS号108-80-5 氰尿酸 | CAS号144603-02-1 1-butyl-3-ethyl... | CAS号2085-15-6 2-丁基-2-乙基丙二酸 | CAS号19136-92-6 丁酸-D2 | CAS号1873-60-5 3-Ethyl-2-hydro... | CAS号21149-88-2 5-ethyl-5-(3-me...

亚乙基丙二酸二乙酯置于乙醚,镍体系中,化学反应生成乙基丙二酸二乙酯
参考文献:Hydrogenation Of Derivatives Of Pyridine
标题:Hydrogenation Of Derivatives Of Pyridine
摘要:
Doi:10.1021/ja01326A063

专利信息

专利号:US-6051704-A
优先权日:1996-07-22
标题:Synthesis of macrocyclic tetraamido-N ligands
发明人：GORDON-WYLIE SCOTT W; COLLINS TERRENCE J
权利人:UNIV CARNEGIE MELLON
摘要:New synthetic methods for the preparation of macrocyclic amido-N donor ligands are provided. The primary method of the present invention involves in general only two synthetic steps. In the first step, an α or β amino carboxylic acid is allowed to react with an optimal (approximately stoichiometric) amount of an activated malonate or oxalate derivative with mild heating. Upon completion of the double coupling reaction, hydrolysis of the reaction mixture yields a diamide containing intermediate (a macro linker). In the second step, stoichiometric amounts of a diamine, preferably an orthophenylene diamine, are added to the macro linker intermediate in the presence of a coupling agent and heat. This second double coupling reaction, is allowed to proceed for a period of time sufficient to produce a macrocyclic tetraamido compound. The substituent groups on the α or β amino carboxylic acid, the malonate, and the aryl diamine may all be selectively varied so that the resulting tetraamido macrocycle can be tailored to specific desired end uses. The macrocyclic tetraamide ligand may then be complexed with a metal, such as a transition metal, and preferably the middle and later transition metals, to form a robust chelate complex suitable for catalyzing oxidation reactions.

专利号:US-4331688-A
优先权日:1978-02-23
标题 :Therapeutic method for inhibiting gastric secretion by administration of 15-deoxy-16-hydroxy prostaglandins
发明人：KLUENDER HAROLD C; WOESSNER WARREN D; BIDDLECOM WILLIAM G
权利人:MILES LAB
摘要:Analogues of PGE 1 having the structural formula, ##STR1## in which J is R-hydroxymethylene or S-hydroxymethylene; R 1 is hydrogen; R 2 is hydrogen or together with R 4 is a methylene chain of 2 to 3 carbon atoms such that a cycloalkyl of 5 to 6 carbon atoms inclusive is formed; R 3 is hydrogen or methyl, or together with R 4 is a methylene or a lower alkylated methylene chain of 2 to 5 carbon atoms such that a cycloalkyl or a lower alkylated cycloalkyl of 4 to 7 carbon atoms inclusive is formed, or together with R 4 is bicycloalkyl or bicycloalkenyl moiety having the formula: ##STR2## such that a bicycloalkyl or bicycloalkenyl compound is formed, wherein m and n are integers having a value from 0 to 3, p is an integer having a value from 0 to 4 and q is an integer having a value of from 1 to 4 and wherein the double bond of such bicycloalkenyl is in the m, n, p, or q bridge; R 4 is hydrogen or methyl or together with R 2 or R 3 forms a cycloalkyl or bicycloalkyl or bicycloalkenyl as defined above, or together with R 5 is a methylene chain of 3 to 5 carbon atoms such that a cycloalkyl of 4 to 6 carbon atoms inclusive is formed; R 5 is selected from the group consisting of hydrogen, straight-chain alkyl having from 1 to 3 carbon atoms or together with R 4 forms a cycloalkyl as defined above; and R 6 is hydrogen or straight-chain alkyl having from 1 to 3 carbon atoms are disclosed. n PGE 1 ester analogues of the above formula, limited to the structures wherein two of R 2 , R 3 R 4 and R 5 form a cycloalkyl, lower alkylated cycloalkyl, bicycloalkyl or bicycloalkenyl are also disclosed. n The prostaglandin analogues selectively produce bronchodilation and decrease gastric secretion in vivo. n Methods of preparing the analogues and starting materials required in the synthesis of the analogues are also disclosed.

专利号:US-4132738-A
优先权日:1978-02-23
标 题:Preparation of 15-deoxy-16-hydroxyprostaglandins
发明人：KLUENDER HAROLD C; WOESSNER WARREN D; BIDDLECOM WILLIAM G
权利人:MILES LAB
摘要:Analogues of PGE 1 having the structural formula, ##STR1## in which J is R-hydroxymethylene or S-hydroxymethylene; R 1 is hydrogen; R 2 is hydrogen or together with R 4 is a methylene chain of 2 to 3 carbon atoms such that a cycloalkyl of 5 to 6 carbon atoms inclusive is formed; R 3 is hydrogen or methyl, or together with R 4 is a methylene or a lower alkylated methylene chain of 2 to 5 carbon atoms such that a cycloalkyl or a lower alkylated cycloalkyl of 4 to 7 carbon atoms inclusive is formed, or together with R 4 is bicycloalkyl or bicycloalkenyl moiety having the formula: ##STR2## SUCH THAT A BICYCLOALKYL OR BICYCLOALKENYL COMPOUND IS FORMED, WHEREIN M AND N ARE INTEGERS HAVING A VALUE FROM 0 TO 3, P IS AN INTEGER HAVING A VALUE FROM 0 TO 4 AND Q IS AN INTEGER HAVING A VALUE OF FROM 1 TO 4 AND WHEREIN THE DOUBLE BOND OF SUCH BICYCLOALKENYL IS IN THE M, N, P, OR Q BRIDGE; R 4 is hydrogen or methyl or together with R 2 or R 3 forms a cycloalkyl or bicycloalkyl or bicycloalkenyl as defined above, or together with R 5 is a methylene chain of 3 to 5 carbon atoms such that a cycloalkyl of 4 to 6 carbon atoms inclusive is formed; R 5 is selected from the group consisting of hydrogen, straight-chain alkyl having from 1 to 3 carbon atoms or together with R 4 forms a cycloalkyl as defined above; and R 6 is hydrogen or straight-chain alkyl having from 1 to 3 carbon atoms are disclosed. n Pge 1 ester analogues of the above formula, limited to the structures wherein two of R 2 , R 3 R 4 and R 5 form a cycloalkyl, lower alkylated cycloalkyl, bicycloalkyl or bicycloalkenyl are also disclosed. n The prostaglandin analogues selectively produce bronchodilation and decrease gastric secretion in vivo. n Methods of preparing the analogues and starting materials required in the synthesis of the analogues are also disclosed.

专利号:US-7060818-B2
优先权日:2003-02-21
标题:Synthesis of macrocyclic tetraamido compounds and new metal insertion process
发明人：HORWITZ COLIN P; GHOSH ANINDYA
权利人:UNIV CARNEGIE MELLON
摘要:An improved method of synthesizing a macrocyclic tetraamido compound includes protecting the amino portion of an amino carboxylic acid to form a protected amino carboxylic acid; exposing the protected amino carboxylic acid to a first solvent, preferably a hydrocarbon solvent, such as toluene or 1,2-dichloroethane, dichloromethane, dibromomethane and 1,2-dibromoethane. The carboxylic acid portion of the protected amino carboxylic acid is then converted to an activated carboxylic acid by one of esterification or acid halide formation, to form a protected amino activated carboxylic acid derivative. The protected amino activated carboxylic acid derivative is reacted with a diamine in the presence of a second solvent, such as THF or ,2-dichloroethane, dichloromethane, dibromomethane and 1,2-dibromoethane, to form a protected diamide diamine intermediate. Following deprotection, the diamide diamine intermediate is reacted with an activated diacid, such as an activated malonate, oxalate or succinate derivative to form the macrocyclic tetraamido compound. The macrocyclic tetraamido compound may further be complexed with a transition metal.

专利号:US-9896523-B2
优先权日:2015-06-26
标题 :Ziegler-Natta catalyst synthesis and process thereof
发明人：SINGH GURMEET; KUMAR NARESH; KAUR SUKHDEEP; BANTU BHASKER; KAPUR GURPREET SINGH; SHASHIKANT
权利人:INDIAN OIL CORP LTD
摘要:The present invention describes a process of preparing a catalyst for olefin polymerization comprising: (i) treating a magnesium metal with an organohalide along with an internal donor to obtain a reaction mixture having solid component (A); (ii) treating the reaction mixture having solid component (A) with an acyl halide to obtain a reaction mixture having solid component (B); and (iii) treating the reaction mixture having solid component (B) of step (ii) with a transition metal compound to obtain the catalyst. The present invention also relates to a process for preparation of a catalyst system from said catalyst and preparation of a polyolefins from the catalyst system.

专利号:US-4415592-A
优先权日:1978-02-23
标 题 :15-Deoxy-16-hydroxy prostaglandins for producing bronchodilation
发明人：KLUENDER HAROLD C; WOESSNER WARREN D; BIDDLECOM WILLIAM G
权利人:MILES LAB
摘要:Analogues of PGE 1 having the structural formula, ##STR1## in which J is R-hydroxymethylene or S-hydroxymethylene; R 1 is hydrogen; R 2 is hydrogen or together with R 4 is a methylene chain of 2 to 3 carbon atoms such that a cycloalkyl of 5 to 6 carbon atoms inclusive is formed; R 3 is hydrogen or methyl, or together with R 4 is a methylene or a lower alkylated methylene chain of 2 to 5 carbon atoms such that a cycloalkyl or a lower alkylated cycloalkyl of 4 to 7 carbon atoms inclusive is formed, or together with R 4 is bicycloalkyl or bicycloalkenyl moiety having the formula: ##STR2## such that a bicycloalkyl or bicycloalkenyl compound is formed, wherein m and n are integers having a value from 0 to 3, p is an integer having a value from 0 to 4 and q is an integer having a value of from 1 to 4 and wherein the double bond of such bicycloalkenyl is in the m, n, p, or q bridge; R 4 is hydrogen or methyl or together with R 2 or R 3 forms a cycloalkyl or bicycloalkyl or bicycloalkenyl as defined above, or together with R 5 is a methylene chain of 3 to 5 carbon atoms such that a cycloalkyl of 4 to 6 carbon atoms inclusive is formed; R 5 is selected from the group consisting of hydrogen, straight-chain alkyl having from 1 to 3 carbon atoms or together with R 4 forms a cycloalkyl as defined above; and R 6 is hydrogen or straight-chain alkyl having from 1 to 3 carbon atoms are disclosed. n PGE 1 ester analogues of the above formula, limited to the structures wherein two of R 2 , R 3 , R 4 and R 5 form a cycloalkyl, lower alkylated cycloalkyl, bicycloalkyl or bicycloalkenyl are also disclosed. n The prostaglandin analogues selectively produce bronchodilation and decrease gastric secretion in vivo. n Methods of preparing the analogues and starting materials required in the synthesis of the analogues are also disclosed.