A new InCl3-catalyzed reduction of anthrones and anthraquinones by using aluminum powder in aqueous media
作者:Chunyan Wang、Jieping Wan、Zhiguo Zheng、Yuanjiang Pan
DOI:10.1016/j.tet.2007.03.113
日期:2007.6
InCl3-catalyzed reduction of anthrones and anthraquinones was investigated under different conditions. A new synthetic method for anthracenes in aqueous media under mild conditions is described.
Study of intramolecular hydrogen abstraction on photoexcited 1,3-dimethylanthrone in the condensed phase
作者:Takashi Omori、Tadashi Suzuki、Teijiro Ichimura
DOI:10.1016/s0009-2614(98)00821-5
日期:1998.9
The time-resolved thermal lensing (TRTL) technique was applied to determine the reaction heat of intramolecularhydrogenabstraction for excited 1,3-dimethylanthrone (DMAT). The excited carbonyl group abstracts the hydrogen atom of the neighboring methyl group to produce an intermediate. The intermediate decayed with 1.2±0.1 μs. The heat conversion efficiency was determined to be 1.02±0.02, revealing
A polybutadiene composition comprising a polybutadiene type polymer and a compound represented by the following formula (I):
1
wherein Ar
1
and Ar
2
each independently represent an aromatic ring, X and Y each independently represent an alkylene group having one or two carbon atoms, an oxygen atom or a carbonyl group, is provided; and thermal degradation of the polybutadiene type polymer can be prevented even in an air-free environment.
一种聚丁二烯组合物,由聚丁二烯类聚合物和下式(I)所代表的化合物组成:
1
其中 Ar
1
和 Ar
2
分别独立地代表一个芳香环,X 和 Y 分别独立地代表一个或两个碳原子的亚烷基、一个氧原子或一个羰基;即使在无空气环境中,也能防止聚丁二烯型聚合物的热降解。
v. Braun; Bayer, Chemische Berichte, 1926, vol. 59, p. 922
作者:v. Braun、Bayer
DOI:——
日期:——
Barnett; Hewett, Journal of the Chemical Society, 1932, p. 1452,1457