caa a22 4500 463184300 CHVBK 20180406164848.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10870-007-9199-4 doi (NATIONALLICENCE)springer-10.1007/s10870-007-9199-4 Synthesis and Crystal Structures of 3,3,6,6-tetramethyl-9-(2,4-dichlorophenyl)-3,4,6,7,9,10-hexahydro-2 H ,5 H -acridine-1,8-dione and 3,3,6,6-tetramethyl-9,10-di(4-methoxyphenyl)-3,4,6,7,9,10-hexahydro-2 H ,5 H -acridine-1,8-dione [Elektronische Daten] [Da-Qing Shi, Sai-Nan Ni, Fang Yang, Xiao-Yue Li, Xiang-Shan Wang] The title compounds 3,3,6,6-tetramethyl-9-(2,4-dichlorophenyl)-3,4,6,7,9,10-hexahydro-2H,5H-acridine-1,8-dione 1 (C23H25Cl2NO2, Mr=418.34) and 3,3,6,6-tetramethyl-9,10-di(4-methoxy-phenyl)-3,4,6,7,9,10-hexahydro-2H,5H-acridine-1,8-dione 2 (C31H35NO4, Mr=485.60) were synthesized and crystallized. The crystals of compound 1 are monoclinic, space group P21/c, a=9.826(3), b=19.866(5), c=11.471(3) Å, β=111.929(4)°, Z=4, V=2077(1) Å3; The compound 2 crystallizes in space group P21/c, with cell parameters a=12.089(2), b=11.447(2), c=19.742(3) Å, β=101.00(1)°, V=2681.8(8) Å3 and D calc=1.203g/cm3 for Z=4. X-ray analysis reveals that atoms C(1), C(6), C(7), C(8), C(13) and N(1) form a 1,4-dihydropyridine ring in compound 1, which adopts half-chair conformation. In compound 2 the atoms C(1), C(6), C(7), C(8), C(13) and N form a 1,4-dihydropyridine ring which adopts boat conformation. In addition, the two outer six-membered rings display half-chair conformations in the crystal structures 1 and 2. Springer Science+Business Media, LLC, 2007 Crystal structure nationallicence Hexahydro-2 H ,5 H -acridine-1,8-dione nationallicence 1,4-dihydropyridine nationallicence Conformation nationallicence Shi Da-Qing College of Chemistry and Chemical Engineering, Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou University, 215123, Suzhou, P.R. China aut Ni Sai-Nan Department of Chemistry, Xuzhou Normal University, 221116, Xuzhou, P.R. China aut Yang Fang Department of Chemistry, Xuzhou Normal University, 221116, Xuzhou, P.R. China aut Li Xiao-Yue Department of Chemistry, Xuzhou Normal University, 221116, Xuzhou, P.R. China aut Wang Xiang-Shan Department of Chemistry, Xuzhou Normal University, 221116, Xuzhou, P.R. China aut Journal of Chemical Crystallography Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 37/7(2007-07-01), 483-487 1074-1542 37:7<483 2007 37 10870 https://doi.org/10.1007/s10870-007-9199-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10870-007-9199-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shi Da-Qing College of Chemistry and Chemical Engineering, Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou University, 215123, Suzhou, P.R. China aut NATIONALLICENCE 700 1- Ni Sai-Nan Department of Chemistry, Xuzhou Normal University, 221116, Xuzhou, P.R. China aut NATIONALLICENCE 700 1- Yang Fang Department of Chemistry, Xuzhou Normal University, 221116, Xuzhou, P.R. China aut NATIONALLICENCE 700 1- Li Xiao-Yue Department of Chemistry, Xuzhou Normal University, 221116, Xuzhou, P.R. China aut NATIONALLICENCE 700 1- Wang Xiang-Shan Department of Chemistry, Xuzhou Normal University, 221116, Xuzhou, P.R. China aut NATIONALLICENCE 773 0- Journal of Chemical Crystallography Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 37/7(2007-07-01), 483-487 1074-1542 37:7<483 2007 37 10870 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer