Synthesis and Crystal Structure of Tetraethyl syn-1,5,8,8bβ-Tetrahydrocyclobuta[1,2-b:3,4-b']dipydine-3,4aβ,7,8aβ(4H,4bβH)-tetracarboxylate

被引：0
|
作者：
李荣强 [1 ]
闫凤美 [1 ]
闫红 [2 ]
机构：
[1] Department of Chemistry and Chemical Engineering, Huanghuai University
[2] College of Life Science and Bioengineering, Beijing University of Technology
来源：
Chinese Journal of Structural Chemistry | 2007年 / 04期
关键词：
1; 4-dihydropyridine; photoreaction; syn-photodimer; crystal structure;
D O I：
10.14102/j.cnki.0254-5861.2007.04.006
中图分类号：
O621.25 [];
学科分类号：
070303 ; 081704 ;
摘要：
The synthesis of syn-photodimer from 1,4-dihydropyridine without 4-aryl was studied, and its single crystal was obtained (C22H30N2O8, Mr = 450.48). It crystallizes in monoclinic, space group P21/c with a = 11.937(2), b = 20.913(4), c = 9.763(2) , β = 108.46(3)°, V = 2311.9(8) 3, Z = 4, Dc = 1.294 g/cm3, F(000) = 960, μ = 0.099 mm-1, R = 0.0640 and wR = 0.1464 for 4077 unique reflections with 1598 observed ones (I > 2σ(I)). It is shown that the whole molecular structure of the title compound is a twist-boat conformation, and the two double bonds have a trend of potential intramolecular reaction under high-energy irradiation.
引用
收藏
页码：409 / 412
页数：4
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