Three 4,7-diaryl-2-ethylsulfanylpyrazolo[1,5-a][1,3,5] triazines

Henry Insuasty; Paola Mier; Gina Suarez; John N. Low; Justo Cobo; Christopher Glidewell

doi:10.1107/S0108270107064074

Three 4,7-diaryl-2-ethylsulfanylpyrazolo[1,5-a][1,3,5] triazines

Henry Insuasty, Paola Mier, Gina Suarez, John N. Low, Justo Cobo, Christopher Glidewell

School of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The molecular dimensions of 2-ethylsulfanyl-7-(4-methylphenyl)4-phenylpyrazolo[1,5-a][1,3,5] triazine, C20H18N4S, (I), 7-(4-chlorophenyl)-2-ethylsulfanyl-4-phenylpyrazolo[1,5a][1,3,5] triazine, C19H15ClN4S, (II), and 4,7-bis(4-chlorophenyl)2-(ethylsulfanyl) pyrazolo[1,5-a][1,3,5] triazine, C19H14Cl2N4S, (III), show evidence for some aromatic delocalization in the pyrazole rings. The conformations adopted by the ethylsulfanyl substituents are different in all three compounds. There are no hydrogen bonds in any of the crystal structures, but pairs of molecules in (II) and (III) are linked into centrosymmetric dimers by pi-stacking interactions.

Original language	English
Number of pages	4
Journal	Acta Crystallographica Section C-Crystal Structure Communications
Volume	64
DOIs	https://doi.org/10.1107/S0108270107064074
Publication status	Published - Jan 2008

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title = "Three 4,7-diaryl-2-ethylsulfanylpyrazolo[1,5-a][1,3,5] triazines",

abstract = "The molecular dimensions of 2-ethylsulfanyl-7-(4-methylphenyl)4-phenylpyrazolo[1,5-a][1,3,5] triazine, C20H18N4S, (I), 7-(4-chlorophenyl)-2-ethylsulfanyl-4-phenylpyrazolo[1,5a][1,3,5] triazine, C19H15ClN4S, (II), and 4,7-bis(4-chlorophenyl)2-(ethylsulfanyl) pyrazolo[1,5-a][1,3,5] triazine, C19H14Cl2N4S, (III), show evidence for some aromatic delocalization in the pyrazole rings. The conformations adopted by the ethylsulfanyl substituents are different in all three compounds. There are no hydrogen bonds in any of the crystal structures, but pairs of molecules in (II) and (III) are linked into centrosymmetric dimers by pi-stacking interactions.",

author = "Henry Insuasty and Paola Mier and Gina Suarez and Low, \{John N.\} and Justo Cobo and Christopher Glidewell",

year = "2008",

month = jan,

doi = "10.1107/S0108270107064074",

language = "English",

volume = "64",

journal = "Acta Crystallographica Section C-Crystal Structure Communications",

issn = "1600-5759",

publisher = "International Union of Crystallography",

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TY - JOUR

T1 - Three 4,7-diaryl-2-ethylsulfanylpyrazolo[1,5-a][1,3,5] triazines

AU - Insuasty, Henry

AU - Mier, Paola

AU - Suarez, Gina

AU - Low, John N.

AU - Cobo, Justo

AU - Glidewell, Christopher

PY - 2008/1

Y1 - 2008/1

N2 - The molecular dimensions of 2-ethylsulfanyl-7-(4-methylphenyl)4-phenylpyrazolo[1,5-a][1,3,5] triazine, C20H18N4S, (I), 7-(4-chlorophenyl)-2-ethylsulfanyl-4-phenylpyrazolo[1,5a][1,3,5] triazine, C19H15ClN4S, (II), and 4,7-bis(4-chlorophenyl)2-(ethylsulfanyl) pyrazolo[1,5-a][1,3,5] triazine, C19H14Cl2N4S, (III), show evidence for some aromatic delocalization in the pyrazole rings. The conformations adopted by the ethylsulfanyl substituents are different in all three compounds. There are no hydrogen bonds in any of the crystal structures, but pairs of molecules in (II) and (III) are linked into centrosymmetric dimers by pi-stacking interactions.

AB - The molecular dimensions of 2-ethylsulfanyl-7-(4-methylphenyl)4-phenylpyrazolo[1,5-a][1,3,5] triazine, C20H18N4S, (I), 7-(4-chlorophenyl)-2-ethylsulfanyl-4-phenylpyrazolo[1,5a][1,3,5] triazine, C19H15ClN4S, (II), and 4,7-bis(4-chlorophenyl)2-(ethylsulfanyl) pyrazolo[1,5-a][1,3,5] triazine, C19H14Cl2N4S, (III), show evidence for some aromatic delocalization in the pyrazole rings. The conformations adopted by the ethylsulfanyl substituents are different in all three compounds. There are no hydrogen bonds in any of the crystal structures, but pairs of molecules in (II) and (III) are linked into centrosymmetric dimers by pi-stacking interactions.

UR - https://www.scopus.com/pages/publications/38749115828

U2 - 10.1107/S0108270107064074

DO - 10.1107/S0108270107064074

M3 - Article

SN - 1600-5759

SN - 0108-2701

VL - 64

JO - Acta Crystallographica Section C-Crystal Structure Communications

JF - Acta Crystallographica Section C-Crystal Structure Communications

ER -

Three 4,7-diaryl-2-ethylsulfanylpyrazolo[1,5-a][1,3,5] triazines

Abstract

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