scholarly journals Ethyl 2-amino-4-(3-nitrophenyl)-4H-1-benzothieno[3,2-b]pyran-3-carboxylate

2014 ◽  
Vol 70 (5) ◽  
pp. o587-o587 ◽  
Author(s):  
Mohamed Bakhouch ◽  
Ghali Al Houari ◽  
Mohamed El Yazidi ◽  
Mohamed Saadi ◽  
Lahcen El Ammari

The molecule of the title compound, C20H16N2O5S, is built up by one fused five-membered and two fused six-membered rings linked to ethoxycarbonyl and 3-nitrophenyl groups. The benzothienopyran ring system is nearly planar (r.m.s deviation = 0.0392 Å) and forms a dihedral angle of 86.90 (6)° with the aromatic ring of the nitrobenzene group. In the crystal, molecules are linked by N—H...O hydrogen bonds and by π–π interactions between the phenyl ring and the six-membered heterocyle [intercentroid distance = 3.5819 (8) Å], forming a three-dimensional network.

2014 ◽  
Vol 70 (11) ◽  
pp. o1168-o1168
Author(s):  
Hong Dae Choi ◽  
Uk Lee

In the title compound, C15H10F2O2S, the dihedral angle between the planes of the benzofuran ring system [r.m.s. deviation = 0.015 (1) Å] and the 3-fluorophenyl ring is 26.60 (5)°. In the crystal, molecules are linked by C—H...O and C—H...F hydrogen bonds, and by π–π interactions between the benzofuran rings of inversion-related molecules [centroid(benzene)–centroid(furan) distance = 3.819 (2) Å], forming a three-dimensional network.


2014 ◽  
Vol 70 (7) ◽  
pp. o829-o829
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee

In the title compound, C15H10F2O2S, the dihedral angle between the plane of the benzofuran ring system (r.m.s. deviation = 0.015 Å) and that of the 2-fluorophenyl ring is 28.53 (6)°. In the crystal, molecules are linked by C—H...O and C—H...F hydrogen bonds, and by π–π interactions between the furan and benzene rings of neighbouring molecules [centroid–centroid distance = 3.625 (2) Å], forming a three-dimensional network.


2014 ◽  
Vol 70 (3) ◽  
pp. o287-o287
Author(s):  
Mi Zhou ◽  
Ying Shao ◽  
Yong-an Xia ◽  
Xiao-Long Liu ◽  
Xiao-Qiang Sun

In the title compound, C15H19N3O2, the piperazine ring adopts a chair conformation, with its N—C bonds in pseudo-equatorial orientations. The dihedral angle between the C atoms of the piperazine ring and the phthalamide ring system (r.m.s. deviaiton = 0.008 Å) is 89.30 (8)°. In the crystal, molecules are linked by C—H...O hydrogen bonds, generating a three-dimensional network and aromatic π–π interactions also occur [centroid–centroid distances = 3.556 (1)–3.716 (1) Å].


IUCrData ◽  
2016 ◽  
Vol 1 (7) ◽  
Author(s):  
Bang Zhong Wang ◽  
Yong Zhou ◽  
Jun Ping Zhou ◽  
Jian Song Luo ◽  
Shao Ming Chi

In the title compound, C20H13BF2N4O, the central fused three-ring oxadiazaborininonaphthyridine system is planar (r.m.s. deviation of 0.03 Å). The phenyl ring lies in the plane of this ring system, making a dihedral angle of 0.61 (14)°, and is inclined to the pyridine ring by 9.02 (19)°. In the crystal, molecules are connected by C—H...F hydrogen bonds, forming chains propagating along theb-axis direction. The chains are linked by offset π–π interactions [intercentroid distance = 3.4550 (13) Å], forming a three-dimensional supramolecular architecture.


2013 ◽  
Vol 69 (2) ◽  
pp. o285-o286
Author(s):  
Zorica Leka ◽  
Sladjana B. Novaković ◽  
Goran A. Bogdanović ◽  
Gordana P. Radić ◽  
Zoran R. Ratković

In the title compound, C21H18O2S, the central aromatic ring makes dihedral angles of 5.86 (12) and 72.02 (6)° with the rings of the terminalO-benzyl andS-benzyl groups, respectively. The dihedral angle between the peripheral phenyl rings is 66.16 (6)°. In the crystal, molecules are linked by pairs of C—H...O hydrogen bonds, forming inversion dimers. These dimers are linkedviaC—H...π interactions, forming a three-dimensional network.


2014 ◽  
Vol 70 (3) ◽  
pp. o295-o296
Author(s):  
C. Ramathilagam ◽  
P. R. Umarani ◽  
V. Saravanan ◽  
A. K. Mohanakrishnan ◽  
B. Gunasekaran ◽  
...  

In the title compound, C17H14BrNO3S, the phenyl ring makes a dihedral angle of 89.78 (16)° with the plane of the indole ring system. The terminal Br atom and the methyl group are disordered over two sets of sites, with site occupancies of 0.860 (2) and 0.140 (2). In the crystal, molecules are linked into a chain along theb-axis direction by weak C—H...O hydrogen bonds. The chains are further linked by C—H...π interactions, forming layers parallel to thebcplane.


2014 ◽  
Vol 70 (8) ◽  
pp. o839-o839
Author(s):  
Takeshi Oishi ◽  
Makoto Yoritate ◽  
Takaaki Sato ◽  
Noritaka Chida

In the title compound, C16H19NO3, the pyrrolidine ring is in a twist conformation. The dihedral angle between the dihydrofuran ring [maximum deviation = 0.0016 (11) Å] and the phenyl ring is 47.22 (8)°. In the crystal, molecules are linked by weak C—H...O hydrogen bonds, forming helical chains along theb-axis direction. The chains are further linked by C—H...π interactions to constitute a three-dimensional architecture.


2014 ◽  
Vol 70 (3) ◽  
pp. o320-o320
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee

In the title compound, C16H13BrO2S, the dihedral angle between the mean plane [r.m.s. deviation = 0.012 (1) Å] of the benzofuran ring system and the 3-methylphenyl ring is 84.83 (4)°. In the crystal, molecules are linkedviapairs of Br...O [3.240 (1) Å] contacts, forming inversion dimers. These dimers are linked by C—H...π interactions, forming a three-dimensional network.


2012 ◽  
Vol 68 (8) ◽  
pp. o2438-o2439 ◽  
Author(s):  
Hoong-Kun Fun ◽  
Ching Kheng Quah ◽  
D. Munirajasekhar ◽  
M. Himaja ◽  
B. K. Sarojini

The asymmetric unit of the title compound, C15H12FN3S, consists of two independent molecules with comparable geometries. In one molecule, the 1,3-benzothiazole ring system (r.m.s. deviation = 0.011 Å) forms a dihedral angle of 19.86 (6)° with the phenyl ring. The corresponding r.m.s. deviation and dihedral angle for the other molecule are 0.014 Å and 22.32 (6)°, respectively. In the crystal, molecules are linkedviaN—H...N, C—H...F and C—H...N hydrogen bonds into a three-dimensional network. The crystal studied was a non-merohedral twin with a refined BASF value of 0.301 (2).


2014 ◽  
Vol 70 (7) ◽  
pp. o808-o808
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee

In the title compound, C17H15BrO2S, the dihedral angle between the plane of the benzofuran ring system [r.m.s. deviation = 0.004 (3) Å] and that of the 4-methylphenyl ring is 0.9 (2)°. In the crystal, molecules are linked by C—H...O, C—H...π and Br...π [3.636 (2) Å] interactions, and by π–π interactions between the 4-methylphenyl and furan rings of neighbouring molecules [centroid–centroid distance = 3.650 (2) Å], forming a three-dimensional network.


Sign in / Sign up

Export Citation Format

Share Document