2-乙基苯甲腈置于盐酸,Amalgamated Zinc,乙醚体系中,化学反应生成邻二乙苯 参考文献:Birch Et Al.,Journal Of The American Chemical Society,1949,Vol. 71,P. 1362,1366 标题:Birch Et Al.,Journal Of The American Chemical Society,1949,Vol. 71,P. 1362,1366
专利号:US-7956011-B2 优先权日:2005-05-04 标题:Materials and methods for the photodirected synthesis of oligonucleotide arrays 发明人:SERAFINOWSKI PAWEL JERZY; GARLAND PETER BRYAN 权利人:CANCER RES INST ROYAL 摘要:Materials and methods for photodirected synthesis of oligonucleotide arrays on a solid substrate by photodirected synthesis are disclosed which employ a film formed from (i) a photoacid generator that on photolysis generates acid that is capable of directly removing the protecting group of the linker molecules or oligonucleotides and (ii) a polymer substantially lacking electronegative heteroatoms that are capable of hydrogen bonding with photogenerated acid. Methods of synthesizing an oligomer arrays are also described that use a film that restricts diffusion of reactants and products on the substrate during synthesis of the array and which includes a precursor of a deprotecting reagent. The method involves removing one or more of the non-required products of the deprotection reaction from the reactive array elements at which they are produced during the reaction, in order to displace the deprotection reaction towards completion.
专利号:US-4940803-A 优先权日:1988-05-23 标题:Process for synthesis of 1R,2R,5R-2-hydroxy-6-oxo-7-oxabicyclo[3.2.1]-octane 发明人:MILLS SANDER G; VOLANTE RALPH P; SHINKAI ICHIRO 权利人:MERCK & CO INC 摘要:A process is described for the synthesis of hydroxy lactone 3, being 1R, 2R, 5R-2-hydroxy-6-oxo-7-oxabicyclo[3.2.1]-octane, in optically pure form, which is useful as an intermediate in the synthesis of the C 20 -C 34 chain of the macrolide structure for the immunosuppressant FK-506. This compound is also useful as a precursor for producing an ultraviolet radiation absorber.
专利号:US-2003162992-A1 优先权日:2001-12-14 标 题 :Preparation of intermediates useful in the synthesis of antiviral nucleosides 发明人:WATANABE KYOICHI A; DU JINFA 摘要:The present invention is an efficient process for the manufacture of α-acyloxyacetaldehyde, a key intermediate in the synthesis of 1,3-oxathiolane and 1,3-dioxolane nucleosides.
专利号:US-5239023-A 优先权日:1990-10-24 标 题 :Process for the synthesis of crystallizable 3,4-polyisoprene and isoprene-butadiene copolymers having high vinyl contents 发明人:HSU WEN-LIANG; HALASA ADEL F 权利人:GOODYEAR TIRE & RUBBER 摘要:Crystallizable 3,4-polyisoprene and isoprene-butadiene copolymers having high vinyl contents can be synthesized in organic solvents to quantitative yields after short polymerization times by utilizing the catalyst systems of this invention. The 3,4-polyisoprene made utilizing this catalyst system is strain crystallizable and can be employed in tire treads which provide improved traction and improved cut growth resistance. This invention specifically discloses a process for the synthesis of 3,4-polyisoprene which comprises polymerizing isoprene monomer in an organic solvent at a temperature which is within the range of about -10 DEG C. to about 100 DEG C. in the presence of a catalyst system which is comprised of (a) an organoiron compound which is soluble in the organic solvent, wherein the iron in the organoiron compound is in the +3 oxidation state, (b) a partially hydrolyzed organoaluminum compound which was prepared by adding a protonic compound selected from the group consisting of water, alcohols and carboxylic acids to the organoaluminum compound, and (c) a chelating aromatic amine; wherein the molar ratio of the chelating amine to the organoiron compound is within the range of about 0.1:1 to about 1:1, wherein the molar ratio of the organoaluminum compound to the organoiron compound is within the range of about 5:1 to about 200:1, and wherein the molar ratio of the protonic compound to the organoaluminum compound is within the range of about 0.001:1 to about 0.2:1.
专利号:US-5061765-A 优先权日:1990-10-22 标题:Process for the synthesis of a high vinyl isoprene-butadiene copolymer 发明人:HSU WEN-LIANG; HALASA ADEL F 权利人:GOODYEAR TIRE & RUBBER 摘要:Isoprene-butadiene copolymers having high vinyl contents can be synthesized in organic solvents to high yields after short polymerization times by utilizing the process of this invention. The isoprene-butadiene copolymers made utilizing the process of this invention have a glass transition temperature which is within the range of about 0° C. to about -60° C. and can be employed in tire treads which provide improved traction and improved cut growth resistance. This invention specifically discloses a process for the synthesis of isoprene-butadiene copolymers having a high vinyl content which comprises copolymerizing isoprene monomer and butadiene monomer in an organic solvent at a temperature which is within the range of about -10° C. to about 100° C. in the presence of a catalyst system which is comprised of (a) an organoiron compound, (b) an organoaluminum compound, (c) a chelating aromatic amine, and (d) a protonic compound; wherein the molar ratio of the chelating amine to the organoiron compound is within the range of about 0.1:1 to about 1:1, wherein the molar ratio of the organoaluminum compound to the organoiron compound is within the range of about 5:1 to about 200:1, and wherein the molar ratio of the protonic compound to the organoaluminum compound is within the range of about 0.001:1 to about 0.2:1.
专利号:US-5151398-A 优先权日:1990-10-24 标 题 :Catalyst for the synthesis of crystalline 3,4-polyisoprene 发明人:HSU WEN-LIANG; HALASA ADEL F 权利人:GOODYEAR TIRE & RUBBER 摘要:Crystallizable 3,4-polyisoprene can be synthesized in organic solvents to quantitative yields after short polymerization times by utilizing the catalyst systems of this invention. The 3,4-polyisoprene made utilizing this catalyst system is strain crystallizable and can be employed in tire treads which provide improved traction and improved cut growth resistance. This invention specifically discloses a process for the synthesis of 3,4-polyisoprene which comprises polymerizing isoprene monomer in an organic solvent at a temperature which is within the range of about -10° C. to about 100° C. in the presence of a catalyst system which is comprised of (a) an organoiron compound, (b) an organoaluminum compound, (c) a chelating aromatic amine, and (d) a protonic compound; wherein the molar ratio of the chelating amine to the organoiron compound is within the range of about 0.1:1 to about 1:1, wherein the molar ratio of the organoaluminum compound to the organoiron compound is within the range of about 5:1 to about 200:1, and wherein the molar ratio of the protonic compound to the organoaluminum compound is within the range of about 0.001:1 to about 0.2:1.
摘要:Toxicology and Biochemistry of Aromatic Hydrocarbons, Gerarde, H., New York, Elsevier, 1960, -(57), 1960 摘要:Gigiena i Sanitariya. For English translation, see HYSAAV., 39(4)(86), 1974 摘要:Vogt WG, Walsh JJ; in Proc APCA Ann Mtg 78th 6: 2-17 (1985) 摘要:Verschueren, K. Handbook of Environmental Data on Organic Chemicals. 3rd ed. New York, NY: Van Nostrand Reinhold Co., 1996., p. 759 摘要:Sax, N.I. Dangerous Properties of Industrial Materials. 6th ed. New York, NY: Van Nostrand Reinhold, 1984., p. 1004