CAS: 110-57-6; Trans-1,4-Dichloro-2-Butene

相似化合物

1476-11-5 1775-39-9 54880-27-2

上下游产品

CAS号106-99-0 丁二烯 | CAS号310447-99-5 3,4-dichlorobut... | CAS号1476-11-5 顺式1,4-二氯-2-丁烯 | CAS号67-56-1 甲醇 | CAS号764-41-0 1,4-二氯-2-丁烯 | CAS号111-52-4 N,N,N',N'-四甲基-2... | CAS号1112-96-5 Phosphonic acid... | CAS号105-17-9 2-Butene-1,4-di... | CAS号497-06-3 丁烯二醇 | CAS号821-11-4 反-2-丁烯-1,4-二醇 | CAS号19435-69-9 N,N'-dibutylbut... | CAS号624-64-6 反-2-丁烯 | CAS号689-97-4 乙烯基乙炔 | CAS号24430-28-2 2-ethenylspiro[... | CAS号2419-73-0 DL-1,4-二氯-2,3-丁二醇

1,3-丁二烯置于吡啶,四氯化碳,氯体系中,化学反应生成反式-1,4-二氯-2-丁烯
参考文献:Stereochemistry Of 1,4-Addition. I. The Chlorination Of Butadiene1
标题:Stereochemistry Of 1,4-Addition. I. The Chlorination Of Butadiene1
摘要:
Doi:10.1021/ja01145A083

专利信息

专利号:US-4713479-A
优先权日:1986-11-28
标题 :Synthesis of high-purity dialkyl 2-vinylcyclopropane-1,1-dicarboxylate
发明人：CLARK JR CLARENCE E; FAYTER JR RICHARD G
权利人:NAT DISTILLERS CHEM CORP
摘要:This invention relates to a two-step synthesis of high purity dialkyl 2-vinyl-cyclopropane-1,1-dicarboxylate in which a mixture of trans- and cis-1,4-dihalobutene-2 is first isomerized to essentially trans-1,4-dihalobutene-2 followed immediately by cyclocondensing the resultant trans-1,4-dihalobutene-2 with a malonic ester in the presence of an alcoholic solution of a metallic alkoxide.

专利号:US-4365094-A
优先权日:1979-12-28
标 题 :Process for the synthesis of tertiary phosphine oxides, and new tertiary phosphine oxides
发明人：BOILEAU SYLVIE L; N GUYEN THANH-DUNG; GAUTIER JEAN-CLAUDE C
权利人:POUDRES & EXPLOSIFS STE NALE
摘要:The invention relates to the synthesis of tertiary phosphine oxides and also to certain tertiary phosphine oxides. According to the invention, an organic phase containing a halogenomethyl derivative, a secondary phosphine oxide and a phase transfer catalyst in an organic medium is reacted with an aqueous phase containing an inorganic base. The halogenomethyl derivative can be a micromolecule or a macromolecule. The tertiary phosphine oxides are substances which are useful, in particular, in fireproofing, in hydrometallurgy and in the field of plant health.

专利号:US-4111933-A
优先权日:1976-04-30
标题:Protection of functional groups during reaction and their subsequent restoration
发明人：ECKERT HEINER; UGI IVAR; KABBE HANS-JOACHIM
权利人:BAYER AG
摘要:In the process for preparing an organic compound of the formula n n A' -- X n n in which n X is an amino group, a hydroxyl group or a carboxyl group, and n A' is the remainder of the molecule, from an organic compound of the formula n n A -- X n n in which n A is the remainder of the molecule which can undergo reaction to form A', by converting A -- X into a compound of the formula n n A -- Z -- COOR n n in which n Z is --NH--, --O-- or a direct C--C bond, and n R is a radical of the formula ##STR1## IN WHICH Y is a direct C--C single bond, the --CHâ•?CH-- group or an arylene group, n R 1 to R 4 each independently is hydrogen, halogen or an alkyl, aryl, aralkyl, alkoxycarbonyl, alkylaminocarbonyl, arylaminocarbonyl or cycloalkylaminocarbonyl radical, or n R 1 + r 2 and R 3 + R 4 each independently completes a 5- or 6-membered carbocyclic ring, or n R 1 and R 3 conjointly with the grouping --C--Y--C-- forms a carbocyclic ring with 5 or 6 carbon atoms, and Hal is halogen, n Thereby to protect X, then converting A -- Z -- COOR into a compound of the formula n n A' -- Z -- COOR n n and then treating the compound A' -- Z -- COOR to restore the group X, the improvement which comprises effecting the treatment of the compound A' -- Z -- COOR with an alkali metal compound of a complex of monovalent cobalt. The process is applicable particularly to aminocarboxylic acids including intermediates from various stages of the synthesis of penicillins and cephalosporis.

专利号:US-3691198-A
优先权日:1970-12-21
标题 :Synthesis of 1-substituted-3-halopyrrolidines
发明人：BROWN BERNARD BEAN; RUOPP DONALD CARL
权利人:CPC INTERNATIONAL INC
摘要:A method of preparing 1-substituted-3-halopyrrolidines, particularly a method of preparing said pyrrolidines by reacting a 1-substituted- Delta 3-pyrroline with a concentrated hydrogen halide aqueous solution at a temperature greater than 100*C. In a preferred embodiment, a supersaturated hydrobromic acid solution is utilized, i.e., one containing about 60 percent hydrogen bromide. The 1-substituted- Delta 3-pyrroline reactant is preferably made by reaction of a cis-1,4-dihalobutene-2 with a primary amine whereupon cyclization takes place. Said 1substituted-3-halopyrrolidines are intermediates useful in making anti-cholinergics and like materials.

专利号:US-2025136535-A1
优先权日:2021-12-13
标 题:Heterogeneous bimetallic catalyst, method for preparing same and use thereof in the synthesis of ethylene glycol from carbon monoxide
发明人：ABDELLAH IBRAHIM; BIDAL YANNICK; NASR ALLAH TAWFIQ
权利人:FAIRBRICS
摘要:A supported bimetallic catalyst according to the formula Pd-M/Support, which includes palladium and a metal M on a support, wherein M represents Cu or Ag, for use in a method for preparing ethylene glycol from an alcohol. The method includes two reaction steps catalyzed by the bimetallic catalyst of formula Pd-M/Support.

专利号:US-9102708-B2
优先权日:2006-02-17
标 题:Methods for the synthesis of dicarba bridges in organic compounds
发明人：ROBINSON ANDREA JANE; JACKSON WILLIAM ROY; PATEL JIM; ELARIDI JOMANA
权利人:ROBINSON ANDREA JANE; JACKSON WILLIAM ROY; PATEL JIM; ELARIDI JOMANA; SYNGENE LTD
摘要:The present invention relates to methods for forming dicarba bridges in organic compounds. This involves the use of a pair of complementary metathesisable groups on the organic compound, and subjecting the compound to cross-metathesis under microwave radiation conditions. In an alternative, the compounds contain a turn-inducing group between the pair of cross-metathesisable groups to facilitate the cross-metathesis.