A new route to N-aromatic heterocycles from the hydrogenation of diesters in the presence of anilines
作者:Yiping Shi、Paul C. J. Kamer、David J. Cole-Hamilton、Michelle Harvie、Emma F. Baxter、Kate J. C. Lim、Peter Pogorzelec
DOI:10.1039/c7sc01718a
日期:——
anilines provides a new synthesis of heterocycles. [Ru(acac)3] and 1,1,1-tris(diphenylphosphinomethyl)ethane (triphos) gave good to excellent yields of the cyclic amines at 220 °C. When aqueous ammonia was used with dimethyl 1,6-hexadienoic acid, -caprolactam was obtained in good yield. A side reaction involving alkylation of the amine by methanol was suppressed by using diesters derived from longer chain
二羧酸及其酯在苯胺存在下的氢化提供了杂环的新合成。[Ru(acac)3] 和 1,1,1-三(二苯基膦甲基)乙烷 (triphos) 在 220 °C 下产生良好至优异的环胺产率。当氨水与二甲基1,6-己二烯酸一起使用时,以良好的收率获得了γ-己内酰胺。通过使用衍生自较长链和支链醇的二酯,可以抑制涉及甲醇对胺进行烷基化的副反应。光学纯二酯((R)-2-甲基丁二酸二甲酯和(S)-2-甲基丁二酸二甲酯)与苯胺氢化得到外消旋3-甲基-1-苯基吡咯烷,产率78%。
High power organic cathodes using thin films of electropolymerized benzidine polymers
作者:Thanh-Tam Truong、Geoffrey W. Coates、Héctor D. Abruña
DOI:10.1039/c5cc05134g
日期:——
Thin films of benzidine polymers were electrochemically deposited directly onto conductive substrates by oxidative coupling. The polymer films exhibited two reversible one-electron transfers at fast rates of charge and discharge.
Provided are poly(arylamine)s. The polymers can be redox active. The polymers can be used as electrode materials in, for example, electrochemical energy storage systems. The polymers can be made by electropolymerization on a conducting substrate (e.g., a current collector).
v.Braun; Kirschbaum, Chemische Berichte, 1919, vol. 52, p. 1723
作者:v.Braun、Kirschbaum
DOI:——
日期:——
Shaped Product Suppressed in Breeding and Production Process Therefor
申请人:Nippon Valqua Industries, Ltd.
公开号:US20150240075A1
公开(公告)日:2015-08-27
A shaped product obtained by allowing a polymer (A) and a compound (B) to undergo hydrosilylation reaction, the polymer (A) and the compound (B) being contained in an uncrosslinked composition including the polymer (A), the compound (B) and a functional filler (C), wherein the polymer (A) is crosslinked by the compound (B) and the resulting crosslinked product is filled with the functional filler (C) dispersed therein, the polymer (A) includes (A1) a polymer of a perfluoropolyether skeleton having one alkenyl group and (A2) a polymer of a perfluoropolyether skeleton having two hydrosilyl [SiH] groups, the compound (B) includes (B1) a compound having two alkenyl groups and/or (B2) a compound having three hydrosilyl groups, and in the uncrosslinked composition, the content of the polymer (A) is 50 to 98 parts by weight based on 100 parts by weight of the total amount of the polymer (A) and the compound (B), and the content of the functional filler (C) is 50 to 500 parts by weight based on 100 parts by weight of the total amount of the polymer (A) and the compound (B).