Crystal Structure of 1,7-Bis(4-chlorophenyl)-4-(1,3-dithiolan-2-ylidene)-1,6-heptadiene-3,5-dione
作者:S. G. Bubbly、S. B. Gudennavar、Babu Verghese、Dhanya Viswam、C. Sudarsanakumar
DOI:10.1007/s10870-008-9362-6
日期:2008.8
The synthesis and crystal structure of 1,7-bis(4-chlorophenyl)-4-(1,3-dithiolan-2-ylidene)-1,6-heptadiene-3,5-dione is described. This compound is a curcuminoid analogue, configurationally symmetric about the C4–C5 atoms and also retains the two fold axis in the crystal phase. This compound crystallizes in the space group C2/c with unit cell parameters a = 19.203(1) Å, b = 13.147(1) Å, c = 8.801(1) Å, β = 112.99(1)°, with half a molecule in the asymmetric unit. The ketenedithioacetal functionality present between the carbonyl groups prevents the possibility of keto-enol tautomerization in this compound. The push-pull nature of the ketenedithioacetal functionality organizes the cinnamoyl groups parallel to each other. The details regarding synthesis and crystal structure of the title compound which is a curcuminoid analogue is reported in this paper.
本文介绍了 1,7-双(4-氯苯基)-4-(1,3-二噻环-2-亚基)-1,6-庚二烯-3,5-二酮的合成和晶体结构。该化合物是一种姜黄素类似物,围绕 C4-C5 原子构型对称,在晶相中也保留了两个折叠轴。该化合物在空间群 C2/c 中结晶,单胞参数 a = 19.203(1) Å, b = 13.147(1) Å, c = 8.801(1) Å, β = 112.99(1)°, 不对称单元中有半个分子。存在于羰基之间的二硫代酮缩醛官能团阻止了该化合物中酮-烯醇共聚的可能性。二硫代乙醛酮官能团的推拉性质使肉桂酰基彼此平行。本文详细介绍了作为姜黄素类似物的标题化合物的合成和晶体结构。