benzene ring noun :a plane symmetrical ring of six carbon atoms which is characteristic of benzene and related aromatic compounds and in which the electrons forming three conjugated double bonds are distributed over the entire ring More from Merriam-Webster onbenzene ring ...
dienes with conjugated double bonds 共轭二烯属 independent double bonds 孤双链 cumulated double bonds 【化】 累积双键 相似单词 benzene n. 苯 bonds n. [bond]的复数 benzene azo benzene 苯偶氮苯 bonds. 牢固的联系,钱 double a. 1.加倍的;两倍的 2.特大的;特强的 3.双人的 4.成双...
With two O, S or NR groups and two CC double bonds in a ring, the systems are not aromatic, and there is no reason to expect them to be planar. In fact, the simple systems are little known, and, except for 1,4-dithiin, it is necessary to look for data from fairly heavily sub...
美 英 un.苯双键 英汉 un. 1. 苯双键
motor fuels, and many other chemical products. ♦ The six carbon atoms of benzene are arranged in a ring, called abenzene ring, having alternating single and double bonds, with a hydrogen atom attached to each carbon atom. This ring is a fundamental component of many other organic compounds...
The mechanical properties of tara-carrageenan mixed gels have been measured and compared with the mechanical properties of carob-carrageenan mixed gels.doi:10.1007/BF00951315S. P. KolesnikovI. V. LyudkovskayaZ. G. MakarovaV. M. ZhulinO. M. Nefedov...
motor fuels, and many other chemical products. ♦ The six carbon atoms of benzene are arranged in a ring, called abenzene ring, having alternating single and double bonds, with a hydrogen atom attached to each carbon atom. This ring is a fundamental component of many other organic compounds...
where RuW NPs catalyzed hydrogenolysis of the Csp2–O bonds with the in situ abstracted hydrogen from the reactant can not only completely avoid the saturation of the benzene ring, but more importantly, allow the Csp2–Csp3bonds to deconstruct promptly over the HY30zeolite without the competiti...
(129→130). This route to these reactive 1,3-dienes often has considerable advantage over others, despite the fact that occasionally temperatures in excess of 200°C are required for ring opening, since no other reagents which might interfere with subsequent reactions of (129) are required. ...
Ring Systems with at least Two Fused Heterocyclic Five- or Six-membered Rings with no Bridgehead Heteroatom Y.A.Jackson,N.O.Townsend, inComprehensive Heterocyclic Chemistry III, 2008 10.03.9.3.2Furo[3,4-d]-1,3,2-dioxathioles Reaction of iodosylbenzene with the dimethylformamide.sulfur trioxide ...