CAS: 104048-92-2; 4-(Trifluoromethyl)Pyrimidin-2(1H)-One

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CAS号59938-06-6 (E)-4-乙氧基-1,1,1... | CAS号57-13-6 尿素 | CAS号785777-87-9 2-溴-4-三氟甲基嘧啶 | CAS号1333222-14-2 4-(trifluoromet... | CAS号136547-19-8 4-三氟甲基-2-甲氧基嘧啶

4-Trifluoromethylpyrimidine-2-Boronic Acid置于hydrazine Hydrate,氧气,Caesium Carbonate体系中,用 水 用作溶剂,化学反应 10.0H,以99%的收率获得2-羟基-4-三氟甲基嘧啶
参考文献:一种催化氧化芳硼类化合物制备酚的方法
标题:一种催化氧化芳硼类化合物制备酚的方法
摘要:本发明公开了一种催化氧化芳硼类化合物合成酚类化合物的方法,在溶剂醇或醇的水溶液中,在碱的作用下,加入水合肼或肼类化合物催化剂,催化氧化芳硼类化合物直接制备酚类化合物.本发明的制备酚类化合物的方法,催化剂是廉价的水合肼或肼类化合物,氧化剂为常压下的空气或氧气,反应无需金属催化剂且活性好,底物来源广泛且稳定,底物敏感官能团相容性好且适用范围广.在优化的反应条件之下,目标产品分离收率高达99%.

专利信息

专利号:US-8981115-B2
优先权日:2008-09-30
标 题 :Process for the synthesis of halogenated cyclic compounds
发明人：BRAUN MAX
权利人:SOLVAY
摘要:A process for the manufacture of a cyclic compound of formula (I) n n n n n n n n n n which comprises (a) adding an acid halide of formula R 1 —C (O)—X, to a vinyl ether of formula (II): CH 2 â•?CH—OR 2 , to produce an addition product, and (b) reacting the addition product with a compound of formula (III): Y-A-Z; wherein R 1 is a halogenated alkyl group; wherein X is fluorine, chlorine, or bromine; wherein R 2 is an alkyl group, an aralkyl group, or an aryl group; wherein Z and Y designate independently carbon or a heteroatom; and wherein A is a linking group between Z and Y comprising 0, 1, 2 or 3 atoms in the cycle.

专利号:CA-2735921-A1
优先权日:2008-09-30
标 题 :Process for the synthesis of halogenated cyclic compounds

专利号:US-8431710-B2
优先权日:2008-09-30
标 题:Process for the synthesis of halogenated cyclic compounds

专利号:US-2011178297-A1
优先权日:2008-09-30
标题:Process for the synthesis of halogenated cyclic compounds

专利号:EP-2334645-B1
优先权日:2008-09-30
标题 :Process for the synthesis of fluorinated cyclic compounds

专利号:EP-2334645-A1
优先权日:2008-09-30
标题:Process for the synthesis of halogenated cyclic compounds