2-dichloroalkane derivatives from olefins using NH4Cl and Oxone® at room temperature is described. A variety of terminal, internal, and cyclic alkenes reacted smoothly to give the corresponding dichlorinated products in good to excellent yields. Moreover, 1,2-disubstituted symmetrical and unsymmetrical olefins dichlorinated with moderate to excellent diastereoselectivity. This method precludes the use of
Effective Au(<scp>iii</scp>)–CuCl<sub>2</sub>-catalyzed addition of alcohols to alkenes
作者:Xin Zhang、Avelino Corma
DOI:10.1039/b706961h
日期:——
Alkenes can be activated by Au(III) catalysts, and the effective addition of alcohols to alkenes can be carried out under mild conditions with Au(III), provided that catalytic amounts of CuCl(2) are added, which significantly stabilize the cationic Au(III).
Compounds, pharmaceutical compositions, kits, article of manufacture, methods of using, and method of preparing of compounds having the formula of:
wherein the variables are as defined herein.
Photosensitive recording material suited for use in electrophotography
申请人:AGFA-GEVAERT
naamloze vennootschap
公开号:EP0347960A1
公开(公告)日:1989-12-27
An electrophotographic recording material which comprises an electrically conductive support having thereon a double layer of a charge generating layer in contiguous relationship with a charge transporting layer comprising a positive charge transporting compound corresponding to the following general formula (I) :
wherein :
R represents hydrogen or an aliphatic or cycloaliphatic group including these groups substituted by non-ionic substituents,
each of R¹ and R² (same or different) represents a C₁-C₆ alkyl group or an aryl group, and
Z represents the atoms necessary to close an adjacent aromatic nucleus or aromatic ring system including such nucleus or ring system substituted with one or more substituents of non-ionic character.
一种电致发光记录材料,它包括一个导电支架,支架上有双层电荷产生层和电荷传输层,电荷产生层和电荷传输层相邻,电荷传输层由符合下通式(I)的正电荷传输化合物组成:
其中 :
R 代表氢或脂族或环脂族基团,包括被非离子取代基取代的这些基团、
R¹ 和 R²(相同或不同)各自代表 C₁-C₆ 烷基或芳基,以及
Z 代表关闭相邻芳香核或芳香环系所需的原子,包括被一个或多个非离子性取代基取代的芳香核或芳香环系。
Kwiecien, Halina; Jalowiczor, Jozef, Polish Journal of Chemistry, 1986, vol. 60, # 7-12, p. 811 - 824