专利号:US-4895996-A 优先权日:1988-10-17 标 题 :Synthesis of alkenes from enamines via hydroboration 发明人:GORALSKI CHRISTIAN T; SINGARAM BAKTHAN; BROWN HERBERT C 权利人:PURDUE RESEARCH FOUNDATION; DOW CHEMICAL CO 摘要:Alkenes are prepared by the hydroboration of enamines followed by an elimination reaction to form the alkene. This process has wide applicability and is useful for the stereospecific synthesis of [Z] isomers. It is preferred to use 9-borabicyclo[3.3.1 nonane as the hydroborating agent and to use methanol to catalyze the elimination reaction.
专利号:US-7884243-B2 优先权日:2003-12-22 标 题:Process for the synthesis of eneamide derivatives 发明人:BURGOS ALAIN; BERTRAND BLANDINE; ROUSSIASSE SONIA; PLUVIE JEAN-FRANCOIS; BLANCHET SYLVIE; MARTIN JULIETTE; PERRIN FLORENCE; BOURDEAU FRANCOISE 权利人:ZACH SYSTEM 摘要:A process for the production of ene-amide derivatives represented by the formula (I) n nwherein R1 and R2 and R3 are independently a hydrogen atom, an alkyl, a cycloalkyl, a cycloalkylalkyl, an alkylaryl, an aryl, a heterocycle, a cyano, an alkoxy, an aryloxy, a carboxyl, a carbamoyl, —CONR5R6 (in which R5 and R6 are independently an alkyl, arylalkyl or aryl group said ring being substituted or not with a functional group or with R5) or —COOR5 group (in which R5 is an alkyl, alkylaryl or aryl group), said alkyl, cycloalkyl, cycloalkylalkyl, alkylaryl and aryl groups being substituted or not with a functional group or with R5; or R1 and R2 taken together, may form a ring (which terms includes mono-, di- and higher polycyclic ring systems); R4 is a hydrogen atom, an alkyl, an aryl, an alkylaryl, said groups are substituted or not with a halogen atom as Cl, Br, or F; X is an oxygen atom or a leaving group and m is an integer 1 or 2; when m is 1 then X is a leaving group; when m is 2 then X is a oxygen atom, which comprise: a hydrogenation/isomerization reaction in presence of a heterogeneous catalyst, of an oxime derivatives of formula (II)n n nwherein R1, R2 and R3 are as defined above with an acyl derivative of formula (III) (R4CO) m X wherein R4, m and X are as defined above.
专利号:US-3814767-A 优先权日:1972-04-07 标 题 :Process for preparing bicyclo alkyl derivatives 发明人:WARD F 权利人:MILES LAB 摘要:A PROCESS FOR THE SYNTHESIS OF BICYCLO ALKYL DERIVATIVES OF THE STRUCTUAL FORMULA: 2,6-(-CH2-X-CH2-),2-R4,3-R1,4-R2,5-R5-CYCLOHEXANONE IN WICH R1 IS H OR PHENYL, R2 IS H OR ALKYL, R4 IS H PHENYL OR SUBSTITUTED PHENYL IN WHICH THE SUBSTITUENTS ARE HALOGEN, ALKOXY, OR ALKYL, R5 IS 4-(R3-PHENYL)PIPERAZINO OR 4-(R3-PHENYL)PIPERIDINO, R3 IS H, HALOGEN, ALKOXY OR CF3, AND X IS A POLYCARBON LOWER ALKYLENE RADICAL OF BETWEEN 0 AND 2 CARBON ATOMS INCLUSIVE, COMPRISING THE FOLLOWING REACTION SEQUENCE: O=CH-CH(-R2)-CH(-R1)-C(-R4)<(-CO-CH2-CH2-X-CH2-) + H-R5 --> (- H2O) R5-CH=C(-R2)-CH(-R1)-C(-R4)<(-CO-CH2-CH2-X- CH2-) --> (DELTA, DMF OR (I-PR-)OH, (ET-)3-N) 2,6-(-CH2-X- CH2-),2-R4,3-R1,4-R2,5-R5-CYCLOHEXANONE THE COMPOUNDS PREPARED ACCORDING TO THE PROCESS OF THIS INVENTION HAVE BENEFICIAL PHARMACOLOGICAL PROPERTIES.
专利号:CN-115161297-A 优先权日:2022-05-09 标 题 :Three-enzyme nanoreactor and its application and synthesis of chiral tertiary α-phenylcycloalcohol
专利号:US-7132092-B2 优先权日:2002-02-08 标 题:Metallized mesoporous silicate and method of oxidation with the same 发明人:HAGIYA KOJI 权利人:SUMITOMO CHEMICAL CO 摘要:A metallized mesoporous silicate which is obtained by (i) reacting (a) either a metal peroxide obtained by the reaction of an aqueous hydrogen peroxide solution with at least one metal or metal compound selected from the group consisting of the following 1) to 4) 1) tungsten 2) molybdenum 3) vanadium 4) compounds comprising 4 a ) any of tungsten, molybdenum, and vanadium and 4 b ) at least one element selected from Groups 13 to 16 (excluding oxygen) or a solution of the metal peroxide with (b) a silicon compound in the presence of an alkylamine or a quaternary ammonium salt and separating the resultant silicate; and a process for producing the metallized mesoporous silicate. Also provided is a method of organic synthesis with the silicate.
专利号:US-2007129573-A1 优先权日:2003-12-22 标 题:Process for the synthesis of eneamide derivatives