Remote C(sp
<sup>3</sup>
)−H Arylation and Vinylation of
<i>N</i>
‐Alkoxypyridinium Salts to δ‐Aryl and δ‐Vinyl Alcohols
作者:Xu Bao、Qian Wang、Jieping Zhu
DOI:10.1002/chem.201902918
日期:2019.9.6
arylboronic and vinylboronicacids afforded δ-aryl and δ-vinyl alcohols, respectively, in the presence of fac-Ir(ppy)3 and Cu(OTf)2 dual catalysts. The reaction takes place through a domino process involving the reductive generation of alkoxyl radicals, 1,5-hydrogen atom transfer (1,5-HAT) and the copper-catalyzed cross-coupling reaction of the resulting translocated carbon radicals with boronic acids. Complementary
N-(Arylalkyl) dibenzoxepin propanamines useful as antihistamines, such as 3-dibenz[b,e]oxepin-11(6H)-ylidene-N-methyl-N-[6-[4-(1,1-dimethylethyl)phe nyl]-6-oxohexyl]-1-propanamine hydrochloride.
Process for the preparation of morpholinones as light stabilizers
申请人:——
公开号:US20040024252A1
公开(公告)日:2004-02-05
The instant invention discloses a process for preparation of compounds of the formula (I), wherein the general symbols are as defined in claim 1, which process comprises reacting a compound of formula (II), wherein the general symbols are as defined in claim 1, with a compound of the formula (III), wherein R
5
is as defined in slaim 1. The compounds of the formula (II) are new and useful as stabilizers for protecting organic materials, in particular synthetic polymers, reprographic materials or coating materials against oxidative, thermal or light-induced degradation.
1
Dibenzo-cycloheptenyl, -cycloheptyl and -oxepinyl amines having antihistaminic properties
申请人:FISONS CORPORATION
公开号:EP0347123A2
公开(公告)日:1989-12-20
There are provided compounds of formula I:
wherein:
X represents -CH₂O-, -CH₂CH₂- or -CH=CH-;
either A represents -OH and B represents hydrogen, or A and B taken together form a second bond between the carbons to which they are attached;
either C represents hydrogen and D represents C1 to 6 alkyl, or C and D form a saturated two carbon chain.
Y represents -CH₂-, -C(=O)-, -CH(OH)-, -S-, -NH-, -0-, or -NHCH₂CH₂-;
R represents C1 to 6 alkyl, -C(CH₃)₂CH₂OH, -C(CH₃)₂CO₂H, -C(CH₃)₂COOR′; and may be at the 2, 3 or 4 position of the benzene ring relative to the rest of the molecule,
R′ represents C1 to 6 alkyl
and n represents an integer between 3 and 6.
提供了式 I 的化合物:
其中
X代表-CH₂O-、-CH₂CH₂-或-CH=CH-;
A 代表-OH,B 代表氢,或 A 和 B 一起在它们所连接的碳之间形成第二键;
C 代表氢,D 代表 C1 至 6 烷基,或者 C 和 D 形成一条饱和的双碳链。
Y 代表-CH₂-、-C(=O)-、-CH(OH)-、-S-、-NH-、-0-或-NHCH₂CH₂-;
R 代表 C1 至 6 烷基、-C(CH₃)₂CH₂OH、-C(CH₃)₂CO₂H、-C(CH₃)₂COOR′;可位于苯环相对于分子其余部分的 2、3 或 4 位置、
R′ 代表 C1 至 6 烷基
n 代表 3 至 6 之间的整数。