CAS: 126-98-7; Methacrylonitrile

上下游产品

丙烯腈 Acrylonitrile 107-13-1
烯丙基腈 Allyl Cyanide 109-75-1

11-Cyan-11-Methyl-9,10-Dihydro-9,10-Ethano-Anthracen 反应生成甲基丙烯腈
参考文献:Alternative Synthesis Of 1,1-Substituted Olefins Having Electron-Withdrawing Substituents
标题:Alternative Synthesis Of 1,1-Substituted Olefins Having Electron-Withdrawing Substituents
摘要:提供了一种合成1,1-二取代烯烃的三阶段方法.

专利信息

专利号:US-6512081-B1
优先权日:1997-07-21
标题:Synthesis of dithioester chain transfer agents and use of bis(thioacyl) disulfides or dithioesters as chain transfer agents
发明人：RIZZARDO ENZIO; THANG SAN HOA; MOAD GRAEME
权利人:E I DUPONT NEMOURS AND COMPANY; COMMW SCIENT IND RES ORG
摘要:This invention relates to the synthesis of dithiocarboxylic acid esters by reaction of bis(thioacyl) disulphides, thioacetals or vinylidane bis(thioether) with free-radicals (optionally in the presence of monomers). The invention also relates to processes for the synthesis of polymers utilising these dithioesters as polymerisation regulators (chain transfer agents) or to the use of bis(thioacyl) disulphides to generate dithioester chain transfer agents in situ.

专利号:US-4163021-A
优先权日:1975-01-27
标 题 :Synthesis of 2,6,10-trimethyl-undecan-1-ol
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:A synthesis of 2,6,10-trimethyl-undecan-1-ol, an intermediate for producing vitamin E, from methacrolein, crotonaldehyde, β-hydroxy-isobutyric acid including intermediates in this synthesis.

专利号:US-4041058-A
优先权日:1975-01-27
标题 :Synthesis of 2,6,10-trimethyl-undecan-1-ol
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:A synthesis of 2,6,10-trimethyl-undecan-1-ol, an intermediate for producing vitamin E, from methacrolein, crotonaldehyde, β-hydroxy-isobutyric acid including intermediates in this synthesis.

专利号:US-6162882-A
优先权日:1996-07-10
标 题:Preparation of novel homo- and copolymers using atom transfer radical polymerization
发明人：MATYJASZEWSKI KRZYSZTOF; COCA SIMION; GAYNOR SCOTT G; NAKAGAWA YOSHIKI; JO SEONG MU
权利人:UNIV CARNEGIE MELLON
摘要:The present invention is directed to a process of atom (or group) transfer radical polymerization for the synthesis of novel homopolymer or a block or graft copolymer, optionally containing at least one polar group, with well defined molecular architecture and narrow polydipersity index, in the presence of an initiating system comprising (i) an initiator having a radically transferrable atom or group, (ii) a transition metal compound, and (iii) a ligand, the present invention is also directed to the synthesis of a macromolecule having at least two halogen groups which can be used as a macroinitiator component (i) to subsequently form a block or graft copolymer by an atom or group transfer radical polymerization process; the present invention is also directed to a process of atom or group transfer radical polymerization for the synthesis of a branched or hyperbranched polymer; in addition, the present invention is directed to a process of atom or group transfer radical polymerization for the synthesis of a macroinitiator which can subsequently be used to produce a block or graft copolymer.

专利号:US-4169209-A
优先权日:1975-01-27
标 题 :Ethers of 2,6-dimethyl-octane-1,8-diols
发明人：COHEN NOAL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:A synthesis of 2,6,10-trimethyl-undecan-1-ol, an intermediate for producing vitamin E, from methacrolein, crotonaldehyde, β-hydroxy-isobutyric acid including intermediates in this synthesis.

专利号:US-3959341-A
优先权日:1972-09-25
标题:Process for low ammonia operation of the nitrile synthesis
发明人：DUNN BOBBY EUGENE
权利人:GOODRICH CO B F
摘要:The synthesis of nitriles such as acrylonitrile by the ammoxidation of mixtures of an olefin such as propylene or isobutylene, ammonia and oxygen or air is operated out low molar feed ratios of ammonia: olefin in the range of 1.03 to 1.07:1 and high excess oxygen levels of 4 to 7 mol % in the reactor effluent gases without significant losses in nitrile yield or significantly increased levels of oxygenated by-products. Control under such conditions is effected by analyzing the reactor effluent gases, previously temperature-conditioned at 350 DEG to 450 DEG F and solids removed, by a mass spectrometer instrument operating in a closed gas sampling and conditioning circuit or loop outside the reactor, and adjucting the input feed gas mixture in response to said effluent gas analysis to maintain the prescribed low ammonia rate in the feed and the excess oxygen level in the effluent gases leaving the reactor. Material savings in ammonia are effected and also in the amount of sulfuric acid required to remove unreacted ammonia from the residual gases before release of same to the atmosphere.