The title compound 2, 3-diethoxycarbonyl-4-phenyl-5-morpholinylthiophene (C20H23NO5S, Mr=389. 47) was obtained by the reaction of a-thiobenzoylth-ioformmorpholine with diethyl acetylene dicarboxylate - The crystal is ...The title compound 2, 3-diethoxycarbonyl-4-phenyl-5-morpholinylthiophene (C20H23NO5S, Mr=389. 47) was obtained by the reaction of a-thiobenzoylth-ioformmorpholine with diethyl acetylene dicarboxylate - The crystal is prismatic, spacegroup P1 ( 2), with unit cell constants 2337 observed reflections . X-ray analysis reveals that interatomic dis-tances for C(1 ) -C(2) and C(3) -C (4) are 1. 393 (4), 1. 370 (4) , respectively,which show that they are C=C double bond. The atoms of C(1 ), C(2), C(3), C(4)and S form a thiophene ring. The dihedral ang1es between thiophene ring and C(5) -C(6) -C(7) -C(8) plane, phenyl ring are 31. 42 and 43. 78, respectively. The mor-pholine ring adopts chair conformation.展开更多
The title compound (C28H27NO5S3, Mr= 553. 69) was prepared bythe reaction of a-thiobenzoylthioformmorholine with diethyl acetylene dicarboxylate.The crystal is monoclinic, space group P21/n with a= 9. 160(3), b= 17. 7...The title compound (C28H27NO5S3, Mr= 553. 69) was prepared bythe reaction of a-thiobenzoylthioformmorholine with diethyl acetylene dicarboxylate.The crystal is monoclinic, space group P21/n with a= 9. 160(3), b= 17. 726(3), c=16. 602(3) A ; β= 100. 375(13)°; V=2651. 4(10) A3, Z=4, Dc= 1. 387 g/cm3, μ(MoKa) =0. 319 mm-1, F(000) =1160, R=0. 0428, wR(F2) =0. 0910 for 2438 observed reflections (I>2(I)). X-ray analysis reveals that interatomic distances for C(5)-C(6), C(13)-C(14) and C(21)-C(22) are 1. 331(4), 1. 351(4), 1. 344(4)A respectively, which show that they are normal C=C double bonds. All S-C bondlengths are similar to typical S-C single bonds (1. 75 - 1. 78 A ). The five-membered ring A (C(5) -C(6) -S(2)-C(13) -S(1) ) (Fig. 1) and six-membered ringB (C(14) -C(15) -C(20) -C(21)-C(22)-S(3) ) (Fig. 1) adopt the flat twist conformation. Furthermore, the morpholine ring adopts chair conformtion.展开更多
文摘The title compound 2, 3-diethoxycarbonyl-4-phenyl-5-morpholinylthiophene (C20H23NO5S, Mr=389. 47) was obtained by the reaction of a-thiobenzoylth-ioformmorpholine with diethyl acetylene dicarboxylate - The crystal is prismatic, spacegroup P1 ( 2), with unit cell constants 2337 observed reflections . X-ray analysis reveals that interatomic dis-tances for C(1 ) -C(2) and C(3) -C (4) are 1. 393 (4), 1. 370 (4) , respectively,which show that they are C=C double bond. The atoms of C(1 ), C(2), C(3), C(4)and S form a thiophene ring. The dihedral ang1es between thiophene ring and C(5) -C(6) -C(7) -C(8) plane, phenyl ring are 31. 42 and 43. 78, respectively. The mor-pholine ring adopts chair conformation.
文摘The title compound (C28H27NO5S3, Mr= 553. 69) was prepared bythe reaction of a-thiobenzoylthioformmorholine with diethyl acetylene dicarboxylate.The crystal is monoclinic, space group P21/n with a= 9. 160(3), b= 17. 726(3), c=16. 602(3) A ; β= 100. 375(13)°; V=2651. 4(10) A3, Z=4, Dc= 1. 387 g/cm3, μ(MoKa) =0. 319 mm-1, F(000) =1160, R=0. 0428, wR(F2) =0. 0910 for 2438 observed reflections (I>2(I)). X-ray analysis reveals that interatomic distances for C(5)-C(6), C(13)-C(14) and C(21)-C(22) are 1. 331(4), 1. 351(4), 1. 344(4)A respectively, which show that they are normal C=C double bonds. All S-C bondlengths are similar to typical S-C single bonds (1. 75 - 1. 78 A ). The five-membered ring A (C(5) -C(6) -S(2)-C(13) -S(1) ) (Fig. 1) and six-membered ringB (C(14) -C(15) -C(20) -C(21)-C(22)-S(3) ) (Fig. 1) adopt the flat twist conformation. Furthermore, the morpholine ring adopts chair conformtion.
