文献类型：期刊文献

英文题名：Microwave Assisted Synthesis and Crystal Structure of 3,3,6,6-Tetramethyl-9-(phenyl)-1,8-dioxo-2,3,4,5,6,7-hexahydroxanthene

作者：Rao, Xiao-Ping[1] Wu, Yong[1] Song, Zhan-Qian[1] Shang, Shi-Bin[1]

第一作者：饶小平

通信作者：Rao, XP[1]|[a0005b2996927fc131f05]饶小平;

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China

年份：2009

卷号：39

期号：7

起止页码：500-503

外文期刊名：JOURNAL OF CHEMICAL CRYSTALLOGRAPHY

收录：;Scopus(收录号：2-s2.0-67349186966);WOS:【SCI-EXPANDED(收录号:WOS:000266164300007)】；

基金：Acknowledgments This research was financially supported by grants from Forestry Commonwealth Industry Special Foundation of China (no. 200704008).

语种：英文

外文关键词：Microwave irradiation; Synthesis; Crystal structure

摘要：The title compound (C23H26O3, M-r = 350.44) has been synthesized under microwave irradiation. Its structure was characterized by IR, H-1 NMR spectroscopy and single-crystal X-ray diffraction. The title crystal is in the monoclinic system, space group C with cell dimensions of a = 6.0500(12) angstrom, b = 19.693(4) angstrom, c = 16.386(3) angstrom, beta = 97.85(3)degrees, V = 1,934.0(7) angstrom(3), Z = 4, D-c = 1.204 g/cm(3), lambda = 0.71073 angstrom, mu = 0.08 mm(-1), F-(000) = 752, the final R = 0.065 and wR = 0.165 for 1,992 observed reflections with I < 2 sigma(I). In the molecular structure, the pyran ring is of boat conformation, and the two-six-membered rings fused with it adopt envelope conformations.