Pd-Catalyzed Carbonylation of Diazo Compounds at Atmospheric Pressure: A Catalytic Approach to Ketenes
作者:Zhenhua Zhang、Yiyang Liu、Lin Ling、Yuxue Li、Yian Dong、Mingxing Gong、Xiaokun Zhao、Yan Zhang、Jianbo Wang
DOI:10.1021/ja107351d
日期:2011.3.30
and affects the diastereoselectivity of the β-lactam products by assisting isomerization of the addition intermediate. On the other hand, the acylketenes generatedfrom the Pd-catalyzed carbonylation of α-diazoketones react with imines in a formal [4 + 2] cycloaddition manner to afford 1,3-dioxin-4-one derivatives. This straightforward carbonylation provides a new approach toward highly efficient catalytic
Co2(CO)8-induced domino reactions of ethyl diazoacetate, carbon monoxide and ferrocenylimines leading to 2-(1-ferrocenyl-methylidene)-malonic acid derivatives
Novel 2-(1-ferrocenyl-methylidene)-malonic acid derivatives are obtained upon reacting ethyl diazoacetate, carbon monoxide and ferrocenylimines in the presence of Co2(CO)8 as catalyst undermildconditions. Presumably, the reaction involves three steps taking place in a domino fashion, (i) carbonylation of ethyl diazoacetate leading to a ketene derivative, (ii) [2+2] cycloaddition of the ketene with
CURABLE COMPOSITION, AND CURED SYNTHETIC RESIN USING SAME
申请人:Mie University
公开号:EP2837660A1
公开(公告)日:2015-02-18
[Problem] To provide a curable composition having high stability and excellent curing properties.
[Solution] The present invention relates to a curable composition, and a cured synthetic resin using same, that functions as a curing catalyst for a synthetic resin. The curable composition contains (A) a titanium alkoxide, (B) a bidentate organic chelating agent that stabilizes the titanium alkoxide and (C) a guanidine compound. The molar ratio of the titanium alkoxide (A), the bidentate organic chelating agent (B), and the guanidine compound (C) is 1:0.5-3:0.5-2.
Urbain; Mentzer, Bulletin de la Societe Chimique de France, 1944, vol. <5> 11, p. 171,173
作者:Urbain、Mentzer
DOI:——
日期:——
INK-JET INK COMPOSITION AND INK JET RECORDING METHOD
申请人:Seiko Epson Corporation
公开号:US20200270471A1
公开(公告)日:2020-08-27
An ink-jet ink composition according to the present disclosure contains pigment, resin particles, a lubricant, water, and an organic solvent. The resin particles are urethane resin particles having a crosslinking group. The lubricant has a mean particle size D50 of 200 nm or less.