Photochemical additions of alkenes to phthalimides. Mechanistic investigations on the stereochemistry of alkene additions and the effect of aryl substituents on the regiochemistry of alkene additions
Photochemical additions of alkenes to phthalimides. Mechanistic investigations on the stereochemistry of alkene additions and the effect of aryl substituents on the regiochemistry of alkene additions
Direct free-radical substitutions on allyl and vinyl halides using alkyl halides/hexabutylditin
作者:Chad C. Huval、Daniel A. Singleton
DOI:10.1016/s0040-4039(00)93373-2
日期:1993.5
Allyl and vinyl halides are excellent acceptors for tin-mediated substitutions by alkyl radicals generated from alkylhalides.
烯丙基和乙烯基卤化物是由烷基卤化物生成的烷基进行锡介导取代的极佳受体。
Decarbonylative Transfer Hydrochlorination of Alkenes and Alkynes Based on a B(C
<sub>6</sub>
F
<sub>5</sub>
)
<sub>3</sub>
‐Initiated Grob Fragmentation
作者:Kaixue Xie、Martin Oestreich
DOI:10.1002/anie.202203692
日期:2022.6.13
fragmentation of cyclohexa-2,5-dien-1-yl-substituted acyl chlorides into a low-molecular-weight arene, carbon monoxide and HCl. In the presence of π-basic substrates such as alkenes and alkynes, HCl is transferred stepwise to afford the corresponding hydrochlorination products. The overall reaction is a decarbonylative transfer hydrochlorination driven by aromatization and carbon-monoxide release.
strategy is described here. Amide is used as the O- and N- source to probe for regiocontrol strategies. Notably, simple additives can be selectively introduced to achieve regiodivergent oxyamination processes for electronically activated alkenes while being regio-complementary for unactivated alkenes. Our preliminary data demonstrates that this regiocontrol strategy based on nucleophile can also be applied
本文描述了一种新型碘化物催化分子间氨氧化策略。酰胺用作 O 源和 N 源来探测区域控制策略。值得注意的是,可以选择性地引入简单的添加剂,以实现电子活化烯烃的区域发散的氧胺化过程,同时对未活化的烯烃进行区域互补。我们的初步数据表明,这种基于亲核试剂的区域控制策略也可以应用于使用手性高价碘催化的不对称过程。
PIGMENT COMPOSITION, PRODUCTION METHOD THEREFOR, AND WATER-BASED INK COMPOSITION
申请人:FUJIFILM Corporation
公开号:EP3677647A1
公开(公告)日:2020-07-08
A pigment composition including at least one pigment selected from the group consisting of a perinone-based pigment and a perylene-based pigment, water, a resin having a constitutional unit represented by Formula 1, and at least one compound selected from the group consisting of a phthalimide compound having a carboxyalkyl group and a naphthalimide compound having a carboxyalkyl group; a method for producing thereof; and an aqueous ink composition using the pigment composition. In Formula 1, R1 represents a hydrogen atom or a methyl group, L2 represents -C(=O)O-, -OC(=O)-, or -C(=O)NR2- and R2 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and R3 represents an alkyl group having 6 or more carbon atoms.