Zobrazeno 1 - 10 of 22 pro vyhledávání: '"Da-Xin Shi"'
1
Akademický článek
(R)-2-[(R)-2,2-Dimethyl-1,3-dioxolan-4-yl]-1,3-oxathiolan-5-one
Autor: Qin-Pei Wu, Da-Xin Shi, Hao Wang, Qing-Shan Zhang
Publikováno v: Acta Crystallographica Section E, Vol 65, Iss 7, Pp o1483-o1483 (2009)
In the title compound, C8H12O4S, the two five-membered rings both adopt envelope conformations. In the crystal, weak C—H...O interactions link neighbouring molecules.
Externí odkaz: https://doaj.org/article/19ecf2382e2a4cd9945a9ca37623a5ef
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2
Akademický článek
4,5,6-Tri-O-acetyl-2,3-di-S-ethyl-2,3-dithio-d-allose diethyl dithioacetal
Autor: Xiao-Dong Xi, Da-Xin Shi, Hui Li, Yun-Zheng Li, Qin-Pei Wu
Publikováno v: Acta Crystallographica Section E, Vol 65, Iss 6, Pp o1227-o1227 (2009)
The title compound, C20H36O6S4, was obtained by ethanethiolysis of 3,5,6-tri-O-acetyl-1,2-O-isopropylidene-α-d-glucofuranose. One of the ethyl groups is disordered over two sites with refined occupancies of 0.869 (6) and 0.131 (6). Compared with the
Externí odkaz: https://doaj.org/article/213f17af99ba40d2bcee72d55235fa4e
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3
New conversion of Friendländer reaction of 3-amino-1H-benzo[f]chromene-2-carbonitriles with cyclohexanone
Autor: Da Xin Shi, Dong Wang, Qi Zhang, Jia Rong Li, Lijun Zhang, Xi Quan Yang, Qing Li, Chun Xia Wang
Publikováno v: Chinese Chemical Letters. 19:15-18
Two different skeletons of heterocyclic compounds, quinoline and quinazolinone analogs could be obtained by a novel one-pot synthesis from substituted 3-amino-1H-benzo[f]chromene-2-carbonitrile derivatives and cyclohexanone in DMF in the catalyst of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f173cc60cd4f2fa214d57359f45ce83
https://doi.org/10.1016/j.cclet.2007.11.003
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4
Ethyl 5′′-(2,6-dichlorophenyl)-1′-methyl-4-(1-naphthyl)-2,3′′-dioxo-2,3,2′′,3′′-tetrahydro-1H-indole-3-spiro-2′-pyrrolidine-3′-spiro-2′′-thiazolo[3′′,2′′-a]pyrimidine-6′′-carboxylate ethyl acetate hemisolvate
Autor: Hong-Liang Chen, Xiao-Fang Li, Ya-Qing Feng, Da-Xin Shi
Publikováno v: Acta Crystallographica Section E Structure Reports Online. 59:o1618-o1620
The asymmetric unit of the title compound, C37H30Cl2N4O4S·0.5C4H8O2, contains two crystallographically independent spiro mol­ecules and an ethyl acetate solvent mol­ecule. In both spiro mol­ecules, the pyrrolidine ring adopts an envelope conforma
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f3a2235c2c4185559e27f21206c9e26
https://doi.org/10.1107/s1600536803021548
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5
4′-(4-Chlorophenyl)-3′'-ethyl-1′-methyl-1H-indole-3-spiro-2′-pyrrolidine-3′-spiro-5′′-[1,3]thiazole-2(3H),2′′(3′′H),4′′(5′′H)-trione benzene sesquisolvate
Autor: Hong-Liang Chen, Xiao-Fang Li, Ya-Qing Feng, Da-Xin Shi
Publikováno v: Acta Crystallographica Section E Structure Reports Online. 59:o1420-o1422
The title compound, C22H20ClN3O3S·1.5C6H6, was synthesized by the intermolecular [3 + 2]-cyclo­addition of azomethine yl­ide, derived from isatin and sarcosine by a de­carboxyl­ative route, and 5-(4-chloro­benzyl­idene)-3-ethyl­thia­zolidine
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0790bbf9ffe37c712530db3babebb3fe
https://doi.org/10.1107/s1600536803018804
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8
4′-(2,4-Dichlorophenyl)-1′-methyl-2,3,2′′,3′′-tetrahydro-1H-indole-3-spiro-2′-pyrrolidine-3′-spiro-2′′-(1,3-benzimidazo[2,1-b]thiazole)-2,3′′-dione
Autor: Xiao-Fang Li, Hong-Liang Chen, Ya-Qing Feng, Da-Xin Shi
Publikováno v: Acta Crystallographica Section E Structure Reports Online. 59:o1405-o1406
In the title compound, C26H18Cl2N4O2S, the two spiro junctions link a planar 2-oxindole ring, a pyrrolidine ring in an envelope conformation and a planar benzo­[4,5]­imidazo­[2,1-b]­thia­zol-3-one ring. Molecules form dimers connected by N—H
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6d7357994c453b17177128a59bf3ebfe
https://doi.org/10.1107/s1600536803018610
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9
Ethyl 4′-(4-methoxyphenyl)-1′,7′′-dimethyl-2,3′′-dioxo-5′′-phenyl-2,3,2′′,3′′,4′′,5′′-tetrahydro-1H-indole-3-spiro-2′-pyrrolidine-3′-spiro-2′′-(thiazolo[3,2-a]pyrimidine)-6′′-carboxylate
Autor: Ya-Qing Feng, Hong-Liang Chen, Da-Xin Shi, Xiao-Fang Li
Publikováno v: Acta Crystallographica Section E Structure Reports Online. 59:o1416-o1417
In the title compound, C34H32N4O5S, the two spiro junctions link a planar 2-ox­indole ring, a pyrrolidine ring in an envelope conformation and a thia­zolo­[3,2-a]­pyrimidine ring. Two mol­ecules are connected by N—H⋯N hydrogen bonds, with an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9876f6ad4597e48c2e97e4b515e9128
https://doi.org/10.1107/s1600536803018786
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10
1′-Methyl-5′-phenyl-2′',3′',5′',6′′-tetrahydroindoline-3-spiro-3′-pyrrolidine-4′-spiro-2′'-imidazo[2,1-b]thiazole-2,3′'-dione
Autor: Gang Li, Ya-Qing Feng, Xiao-Fang Li, Da-Xin Shi
Publikováno v: Acta Crystallographica Section E Structure Reports Online. 59:o1288-o1289
The title compound, C22H20N4O2S, was synthesized by the intermolecular [3 + 2]-cyclo­addition of azomethine yl­ide, derived from isatin and sarcosine by a de­carboxyl­ative route, and 2-benzyl­idene-5,6-di­hydro-imidazo­[2,1-b]­thia­zol-3-on
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::79f8a6f2f20a54be315a16898c0f6f0e
https://doi.org/10.1107/s160053680301746x
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