BENZAZEPINE DERIVATIVE, PROCESS FOR PRODUCING THE SAME, AND USE
申请人:Takeda Chemical Industries, Ltd.
公开号:EP1422228A1
公开(公告)日:2004-05-26
The present invention provides a novel benzazepine derivative represented by formula :
wherein, R1 is a 5- or 6-membered aromatic ring, R2 is lower alkyl group, etc., Y is an optionally substituted imino group, ring A and ring B are independently an optionally substituted aromatic ring, W is formula -W1-X2-W2- (W1 and W2 are independently S(O)m1 (m1 is 0, 1 or 2), etc., and X2 is an optionally substituted alkylene groupetc. ), a preparation method and use thereof.
Promoting Effect of Crystal Water Leading to Catalyst-Free Synthesis of Heteroaryl Thioether from Heteroaryl Chloride, Sodium Thiosulfate Pentahydrate, and Alcohol
作者:Xiantao Ma、Jing Yu、Ran Yan、Mengli Yan、Qing Xu
DOI:10.1021/acs.joc.9b01670
日期:2019.9.6
can promote its multicomponent reaction with heteroaryl chlorides and alcohols, providing a facile, green, and specific synthesis of unsymmetrical heteroaryl thioethers via one-step formation of two C–S bonds under catalyst-, additive-, and solvent-free conditions. Mechanistic studies suggest that the crystal water in Na2S2O3·5H2O is crucial in generating the key thiol intermediates and byproduct NaHSO4
观察到五水硫代硫酸钠(Na 2 S 2 O 3 ·5H 2 O)中的结晶水可以促进其与杂芳基氯化物和醇类的多组分反应,从而一步一步提供了一种不对称的杂芳基硫醚的简便,绿色且特异的合成方法在无催化剂,无添加剂和无溶剂的条件下形成两个C–S键。机理研究表明,Na 2 S 2 O 3 ·5H 2 O中的结晶水对于生成关键的硫醇中间体和副产物NaHSO 4至关重要,后者可以催化醇被硫醇的脱水取代,从而制得硫醚。
The toxicity of organic sulphides to the eggs and larvae of the glasshouse red spider mite. vii.—Benzyl phenyl sulphides (α-substituted)
作者:J. E. Cranham、D. Greenwood、H. A. Stevenson
DOI:10.1002/jsfa.2740090305
日期:1958.3
The synthesis of a number of benzylphenylsulphides, substituted in the α-position of the benzyl moiety, is described and their toxicities to the eggs and young mites of the glasshouseredspider (Tetranychus telarius L.) are tabulated.
The [Cu]-catalyzed SNAR reactions: direct amination of electron deficient aryl halides with sodium azide and the synthesis of arylthioethers under Cu(II)–ascorbate redox system
作者:Yogesh Goriya、C.V. Ramana
DOI:10.1016/j.tet.2010.07.032
日期:2010.9
A one pot [Cu]-promoted SNAr reaction of electron-deficient halobenzenes with sodium azide and the reduction of the intermediate arylazides under the same Cu(II)–ascorbate redox conditions leading to anilines has been documented. Control experiments revealed that both ascorbate and proline play important role in the reaction path way. Further, the use of this catalytic Cu(II)–ascorbate redox system
已有文献证明,在相同的Cu(II)-抗坏血酸氧化还原条件下,电子缺陷型卤代苯与叠氮化钠的一锅[Cu]促进S N Ar反应和中间芳基叠氮化物的还原导致苯胺。对照实验表明,抗坏血酸和脯氨酸均在反应路径中起重要作用。此外,已经探索使用这种催化性的Cu(II)-抗坏血酸氧化还原系统来合成芳基硫醚。