CAS: 563-47-3; 3-Chloro-2-Methylpropene

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CAS号32670-93-2 phosphoric acid... | CAS号115-11-7 2-甲基丙烯 | CAS号628-56-8 Dimethallyl ether | CAS号78538-54-2 tris(2-methylpr... | CAS号64-19-7 冰醋酸 | CAS号3100-04-7 1-甲基环丙烯 | CAS号7782-50-5 氯气 | CAS号594-37-6 二氯异丁烷 | CAS号10500-86-4 1,2-bis(2-methy... | CAS号10523-77-0 1-(Chloromethyl... | CAS号111719-00-7 2-[2-[2-(2-meth... | CAS号10474-14-3 1,2-Dibromo-3-c... | CAS号109930-20-3 2-methyl-3-prop... | CAS号40463-03-4 1-methoxy-3-(3-... | CAS号3290-53-7 (2-甲基烯丙基)苯 | CAS号300-57-2 烯丙基苯 | CAS号42288-08-4 3-甲基-3-(4-甲基苯基)丁酸 | CAS号4911-54-0 4-甲基-4-戊烯酸乙酯

2-甲基-2-丙烯-1-醇置于六氯丙酮,三苯基膦体系中,用 环丁砜 作为反应溶剂,以95.7%的收率获得产物3-氯-2-甲基丙烯
参考文献:Improvements In The Hexachloroacetone/triphenylphosphine Procedure For The Conversion Of Allylic Alcohols Into Chlorides
标题:Improvements In The Hexachloroacetone/triphenylphosphine Procedure For The Conversion Of Allylic Alcohols Into Chlorides
摘要:
DOI:10.1021/jo00317A041

专利信息

专利号:US-2024309024-A1
优先权日:2023-03-14
标题 :Direct synthesis of alkenylhalosilanes
发明人：LEWIS KENRICK MARTIN; ZHU YANJUN; BYRNE CHRISTOPHER M
权利人:MOMENTIVE PERFORMANCE MAT INC
摘要:A process for the direct synthesis of alkenylhalosilane monomers. Forming a slurry of liquid and copper-activated silicon from fresh silicon, cyclone fines and/or fine dust from silicon grinding, ultrafines and/or spent contact mass from the Direct Synthesis of alkylhalosilanes and arylhalosilanes, in a thermally stable solvent. Reacting the silanes by agitating the slurry with at least one unsaturated aliphatic or cycloaliphatic organohalide of the formula R1X, and optionally an organohalosilane and/or hydrogen halide, in the presence of a polymerization inhibiting Lewis base additive, at a reaction time, temperature and pressure effective to produce alkenylhalosilanes having the formulae, R1SiHX2, R12SiHX, R13SiX, R1SiX3, and R12SiX2 or mixtures thereof.

专利号:US-4749806-A
优先权日:1984-12-28
标题:Process for the synthesis of isocyanates and of isocyanate derivatives
发明人：TKATCHENKO IGOR; JAOUHARI RABIH; BONNET MICHEL; DAWKINS GORDON; LECOLIER SERGE
权利人:POUDRES & EXPLOSIFS STE NALE
摘要:The present invention relates to a process for the synthesis of isocyanates and of isocyanate derivatives. Isocyanates are obtained by reacting an organic halide with a metal cyanate in an organic medium in the presence of a catalyst consisting of a complex of nickel with at least one organic ligand, in which complex the nickel is in the zero oxidation state. A carbamate or a urea, respectively, are obtained by a subsequent reaction with a hydroxy compound or a primary or secondary amine. Isocyanates and their derivatives are used especially either as refined synthesis agents for the production of pesticides and medications, or as monomers or comonomers for the preparation of many macromolecular compounds.

专利号:US-5270470-A
优先权日:1986-05-02
标题 :Process for the synthesis of allylated derivatives of 2,2,6,6-tetraalkylpiperidinols
发明人：COSTANZI SILVESTRO; PALLINI LUCIANO; GUSSONI DAMIANO
权利人:ENICHEM SINTESI
摘要:A process is disclosed for the synthesis of 4-allyloxy-2,2,6,6-tetraalkylpiperidinic derivatives by starting from the corresponding 2,2,6,6-tetraaLkyLpiperidinols and from an allyl halide, characterized in that the reaction is made to take place in the absence of water, and in the presence of a finely subdivided allyl-metal hydroxide and of small amounts of a phase-transfer catalyst. The products, which are thus obtained with yields higher than 90%, are useful a stabilizers for polymers or as intermediates for such products.

专利号:US-4479859-A
优先权日:1983-12-27
标 题 :Laser photochemical synthesis of benzene and its derivatives
发明人：MCDONALD JOSEPH K; MERRITT JAMES A
权利人:US ARMY
摘要:A cw CO2 tunable laser is employed to irradiate an allyl halide selected from allyl chloride, allyl bromide, allyl fluoride, 2-methyl-3-chloropropene, and 2,3-dichloropropene and contained in one or more reaction cells at a predetermined pressure. A predetermined power level from about 25 to 150 watts, an irradiating time from about 0.2 second to about 60 seconds, and a selected radiation line for example P(36), P(32), P(28), P(26), or P(22) (that is resonant with an absorption band of the selected allyl halide) are employed to achieve dissociation of the selected allyl halide and to achieve a laser-induced photochemical synthesis of benzene and substituted benzenes.

专利号:US-4064150-A
优先权日:1976-05-26
标 题 :Synthesis of isoprenoid 1,5-dienes
发明人：KATZENELLENBOGEN JOHN A
权利人:UNIV ILLINOIS
摘要:Aliphatic acids containing an isoprenoid 1,5-diene moiety are prepared in high yields by the selective gamma alkylation of α,β-unsaturated acids with allylic electrophiles. The gamma-regioselectivity of the alkylation is controlled by the use of the dicopper(I) dienolates prepared from the α,β-unsaturated acids. The method offers a particularly facile means for synthesizing isoprenoid 1,5-diene natural products such as farnesoic acid by alkylation of senecioic acid with geranyl bromide; geranoic acid by alkylation of senecioic acid with 3,3-dimethallyl bromide; and dl-lanceol by alkylation of tiglic acid with an allylic bromide derived from dl-limonene. Such products find use in the synthesis of insect pheremones, insect juvenile hormones, and components of perfumes.

专利号:US-7507843-B2
优先权日:2003-10-16
标题:Stereoselective synthesis of certain trifluoromethyl-substituted alcohols
发明人：SONG JINHUA J; TAN ZHULIN; XU JINGHUA; YEE NATHAN K; SENANAYAKE CHRIS H
权利人:BOEHRINGER INGELHEIM PHARMA
摘要:A process for stereoselective synthesis of compounds of Formula X wherein: R1 is an aryl or heteroaryl group, each optionally independently substituted with one to three substituent groups, wherein each substituent group of R1 is independently C1-C5 alkyl, C2-C5 alkenyl, C2-C5 alkynyl, C3-C8 cycloalkyl, heterocyclyl, aryl, heteroaryl, C1-C5 alkoxy, C2-C5 alkenyloxy, C2-C5 alkynyloxy, aryloxy, C1-C5 alkanoyloxy, C1-C5 alkanoyl, aroyl, trifluoromethyl, trifluoromethoxy, or C1-C5 alkylthio, wherein each substituent group of R1 is optionally independently substituted with one to three substituent groups selected from methyl, methoxy, fluoro, chloro, hydroxy, oxo, cyano, or amino; and R2 and R3 are each independently hydrogen or C1-C5 alkyl, or R2 and R3 together with the carbon atom they are commonly attached to form a C3-C8 spiro cycloalkyl ring.