A Ring Expansion Route to Benzofused N‐Heterocycles Through Aryne Insertion into 1,3‐Diaza‐heterocycles
作者:Yun Yang、Yue Xu、Christopher R. Jones
DOI:10.1002/ejoc.201900570
日期:2019.9
Ring expansion of 1,3‐diaza‐heterocycles is reported for the synthesis of benzofused N‐heterocycles, which operates via the first examples of formal aryne insertion into a C(sp3)–N σ‐bond. 2,3,4,5‐Tetrahydro‐1H‐benzo[e][1,4]diazepines and 1,2,3,4‐tetrahydroquinazolines have been prepared from the corresponding imidazolidines and 1,3‐diazetidines.
据报道,苯并稠合的N-杂环的合成具有1,3-二氮杂杂环的扩环作用,该过程通过将芳烃正式插入C(sp3)-Nσ-键的第一个例子进行。由相应的咪唑烷和1,3-二氮杂啶制备了2,3,4,5-四氢-1H-苯并[ e ] [1,4]二氮杂和1,2,3,4-四氢喹唑啉。
Method of manufacturing acetone or methyl ethyl ketone
申请人:TOA NENRYO KOGYO KABUSHIKI KAISHA
公开号:EP0068866A1
公开(公告)日:1983-01-05
The invention relates to a method for the manufacture of ketones which comprises oxidizing an n-olefin in the presence of a catalyst containing palladium, copper, a halogen, and at least one of specific tertiary amines.
Radiation-sensitive compositions of polymers containing a pi-metal carbonyl complex of conjugated polyolefin
申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0095269A2
公开(公告)日:1983-11-30
Radiation-sensitive polymeric compositions containing metal-carbonyl complexes and the cured insoluble crosslinked resin produced therefrom are disclosed. When coated as a layer on a substrate, the composition is useful as an element in the graphic arts.
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0170311A2
公开(公告)日:1986-02-05
A process for the dimerization in the liquid phase of an aliphatic mono-olefin having 2 to 12 carbon atoms with a catalytic system formed by combining, in the presence of water, an alcohol or a carboxylic acid:-
a) a palladium compound,
b) a chelate ligand having as coordinating atoms at least two Group 5a atoms which are connected through a chain comprising 2 to 6 carbon atoms, and
c) a compound containing an anion of an acid, except hydrohalogenic acids.
Process for the dimerization of ethylenically unsaturated compounds
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0206367A2
公开(公告)日:1986-12-30
The dimerization of acrylate esters and of ethene and the codimerization of acrylate esters with C2-4-alkenes or 1,3-butadiene and of 1,3-butadiene with ethene in the presence of:
(a) a Pd and/or Ru compound,
(b) a compound containing one trivalent N or P atom, and
(c) an Ag and/or Cu salt, yields at an increased reaction rate dimers of high linearity, when a quinone is also present.
丙烯酸酯和乙烯的二聚化,以及丙烯酸酯与 C2-4- 烷烃或 1,3-丁二烯和 1,3-丁二烯与乙烯在下列物质存在下的共聚化:
(a) Pd 和/或 Ru 化合物、
(b) 含一个三价 N 原子或 P 原子的化合物,以及
(c) Ag 和/或 Cu 盐,在同时存在醌的情况下,以更高的反应速率生成线性度更高的二聚 物。