CAS: 1118-71-4; 2,2,6,6-Tetramethylheptane-3,5-Dione

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三甲基乙酰氯置于乙醚,Sodium Amide,Magnesium,苯体系中,化学反应生成2,2,6,6-四甲基-3,5-庚二酮
参考文献:The Claisen Acylation Of Methyl Ketones With Branched Chain Aliphatic Esters1
标题:The Claisen Acylation Of Methyl Ketones With Branched Chain Aliphatic Esters1
摘要:
Doi:10.1021/ja01147A005

专利信息

专利号:US-6184168-B1
优先权日:1997-09-22
标题:Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst
发明人：LYNCH THOMAS J
权利人:BRIDGESTONE CORP
摘要:The invention provides a catalyst composition, comprising: (a) an organolithium compound; and, (b) an organic acid salt of lanthanide series element; wherein: (1) only components (a) and (b) are required to promote the synthesis of 1,4-trans-polybutadiene; (2) the ratio of component (a) to component (b) is selected to maximize formation of the trans structure of said 1,4-trans-polybutadiene; and, (3) components (a) and (b) are selected for enabling further diblock synthesis. The invention further contemplates a process for using the catalyst to synthesize 1,4-trans-polybutadiene and other polymers and copolymers having trans configuration in the conjugated diene monomer contributed units.

专利号:US-5028724-A
优先权日:1990-03-30
标题:Synthesis of volatile fluorinated and non-fluorinated metal-beta-ketonate and metal-beta-ketoiminato complexes
发明人：IVANKOVITS JOHN C; BOHLING DAVID A; NORMAN JOHN A T; ROBERTS DAVID A
权利人:AIR PROD & CHEM
摘要:A process for the vapor-phase synthesis of non-adduct volatile fluorinated and non-fluorinated metal-ligand complexes comprising contacting a β-diketone or β-ketoimine ligand with an inert carrier gas to vaporize the ligand, reacting the vaporized ligand with a metal species at a temperature sufficient to form the metal-ligand complex and recovering the metal-ligand complex by sublimation. The process is conducted in the absence of solvent thereby providing pure non-adduct metal-ligand complexes. Such complexes are particularly suited for specialty applications requiring use of high purity compounds.

专利号:US-6664396-B1
优先权日:2002-06-27
标 题 :One step synthesis for quinacridone compounds
发明人：COSIMBESCU LELIA
权利人:EASTMAN KODAK CO
摘要:Disclosed is a process for forming a N,N'-diarylquinacridone compound comprising the step of reacting a N,N'-unsubstituted quinacridone compound with a haloaryl compound in the presence of a metal or metal compound to arylate the N and N' positions and form the corresponding N,N'-diarylquinacridone compound. The process is versatile and provides high yields and purity for the synthesis of N,N'-diarylquinacridone compounds.

专利号:US-10766854-B2
优先权日:2017-10-20
标题:Synthesis method for the preparation of dibenzoate compounds, such as 4-[benzoyl(methyl)amino]pentane-2-yl dibenzoate
发明人：ABHYANKAR SHIRISH SHRIKANT; SHAIKH ABBAS-ALLI GHUDUBHAI; GUNASEKARAN SIVALINGAM; SAINANI JAIPRAKASH BRIJLAL
权利人:SABIC GLOBAL TECHNOLOGIES BV
摘要:The present invention relates to a process for synthesis of a compound according to Formula (A): wherein R 1 is a substituted or unsubstituted aryl having 6 to 20 carbon atoms; preferably substituted or unsubstituted phenyl; R 2 is a straight or branched alkyl having 1 to 12 carbon atoms; and R 3 is a straight or branched alkyl having 1 to 12 carbon atoms; starting from a di-keto compound according to Formula (B) wherein R 3 is as shown above, which compound is converted into a ketoenamine compound according to Formula (C) wherein R 2 and R 3 are as shown above, which ketoenamine compound is then reduced to an amino alcohol according to Formula (D), wherein R 2 and R 3 are as shown above, that is subsequently converted into a compound according to Formula (A): characterized in that the ketoenamine is reduced into an amino alcohol using a nickel aluminium alloy in an aqueous solution of an inorganic base.

专利号:WO-9635659-A1
优先权日:1995-05-12
标 题 :Amination of electrophilic aromatic compounds by vicarious nucleophilic substitution
发明人：MITCHELL ALEXANDER R; PAGORIA PHILLIP F; SCHMIDT ROBERT D
权利人:UNIV CALIFORNIA; MITCHELL ALEXANDER R; PAGORIA PHILLIP F; SCHMIDT ROBERT D
摘要:The present invention relates to a process to aminate electrophilic aromatic compounds by vicarious nucleophilic substitution of hydrogen using quaternary hydrazinium salts. The use of trimethylhydrazinium iodide, as well as hydroxylamine, alkoxylamines, and 4-amino-1,2,4-triazole to produce aminated aromatic structures, such as 1,3-diamino-2,4,6-trinitrobenzene (DATB), 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) and 3,5-diamino-2,4,6-trinitrotoluene (DATNT), is described. DATB and TATB are useful insensitive high explosives. TATB is also used for the preparation of benzenehexamine, a starting material for the synthesis of novel materials (optical imaging devices, liquid crystals, ferromagnetic compounds).

专利号:US-8304550-B2
优先权日:2007-11-30
标题 :Process for the catalytic synthesis of diaryl ethers
发明人：COTTE ALAIN; MULLER NIKOLAUS; GOTTA MATTHIAS; BELLER MATTHIAS; SCHAREINA THOMAS; ZAPF ALEXANDER
权利人:COTTE ALAIN; MULLER NIKOLAUS; GOTTA MATTHIAS; BELLER MATTHIAS; SCHAREINA THOMAS; ZAPF ALEXANDER; SALTIGO GMBH
摘要:Described is a process for preparing diaryl ethers of the formula (I)n nAr—O—Ar′  (I)n n In which Ar is an aryl or substituted aryl group and Ar′ is an aryl, substituted aryl, heteroaryl or substituted heteroaryl group, n by reacting an aryl of formula (II) or a aryloxy salt of formula (III)n nAr—OH  (II)n nAr—OR  (III)n n In which Ar has the same meaning as in formula (I) and R is an alkali metal, n with an aryl or heteroaryl bromide of formula (IV)n nAr′—Br  (IV)n n In which Ar′ has the same meaning as in formula (I), n characterized in that the reaction is carried out in the presence of a copper(I)salt and a 1-substituted imidazole as catalyst system.