[EN] SPIROINDOLINEPIPERIDINE DERIVATIVES<br/>[FR] DERIVES DE SPIROINDOLINEPIPERIDINE
申请人:SYNGENTA LTD
公开号:WO2003106457A1
公开(公告)日:2003-12-24
Insecticidal, acaricidal, nematicidal or molluscicidal compounds of formula (I) wherein Y is a single bond, C=O, C=S or C=(O)q where q is 0, 1 or 2; and R1, R2, R3, R4, R8, R9 and R10 are as defined in the claims or salts or N-oxides thereof, processes for preparing them and compositions containing them.
Copper-Catalyzed Domino Synthesis of Benzo[4,5]imidazo[1,2-<i>a</i>]pyrimidin-4(10<i>H</i>)-ones using Cyanamide as a Building Block
作者:Zhenbang Lou、Xudong Wu、Haijun Yang、Changjin Zhu、Hua Fu
DOI:10.1002/adsc.201500577
日期:2015.12.14
An efficient and practical copper-catalyzeddominosynthesis of benzo[4,5]imidazo[1,2-a]pyrimidin-4(10H)-ones has been developed. The protocol uses N-(2-halophenyl)-3-alkylpropiolamides and cyanamide as the starting materials, inexpensive copper(I) iodide and pipecolinic acid as the catalyst and ligand, and the corresponding products were obtained in moderate to good yields.
开发了一种高效实用的苯并[4,5]咪唑并[1,2 - a ]嘧啶-4(10 H)-酮的铜催化多米诺合成。该方案以N-(2-卤代苯基)-3-烷基丙酰胺和氰酰胺为起始原料,廉价的碘化铜(I)和哌啉酸为催化剂和配体,并以中等至良好的产率获得了相应的产物。
Direct Synthesis of 4-Quinolones via Copper-Catalyzed Anilines and Alkynes
作者:Xuefeng Xu、Xu Zhang
DOI:10.1021/acs.orglett.7b02495
日期:2017.9.15
and direct approach for constructing 4-quinolones from simple and readily available anilines and alkynes is described. Under the optimal conditions, both N-alkyl- and N-aryl-substituted anilines can be successfully transformed into the corresponding 4-quinolones. This reaction is characterized by mild reaction conditions, high functional-group tolerance, and amenability to gram-scale synthesis.
Palladium-catalyzed cascade carboesterification of norbornene with alkynes
作者:Wanqing Wu、Can Li、Jianxiao Li、Huanfeng Jiang
DOI:10.1039/c8ob01799a
日期:——
An efficient and convenient palladium-catalyzed cascade carboesterification of norbornenes (NBE) with alkynes has been accomplished to afford functionalized α-methylene γ-lactone and tetrahydrofuran derivatives in good to excellent yields. This new strategy exhibits excellent atom- and step-economy, good functional group tolerance and broad substrate scope. In particular, NBE-palladium species was
A novel palladium‐acid co‐catalyzed C(sp)−C(sp2) cleavage of alkynoates for the construction of dibenzo[c,h]xanthene derivatives is reported. A catalytic amount of triflic acid (TfOH) afforded an efficient transformation into the final product. Furthermore, a reduction process of alkynoates was observed during the formation of dibenzo[c,h]xanthene, preliminary mechanistic studies indicated that the