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

页码：409 / 412

页数：4