11-(p-Tolylsulfonyl)-8,14,24-trioxa-11,22,23-triazatetracyclo[19.2.1.02,7.015,20]tetracosa-1(23),2,4,6,15,17,19,21-octaene
نویسندگان
چکیده
In the title compound, C(25)H(23)N(3)O(5)S, the central 1,3,4-oxadiazole ring makes dihedral angles of 35.05 (7), 23.68 (7) and 82.55 (8)°, with the three benzene rings. In the crystal structure, the packing is stabilized by weak non-classical inter-molecular C-H⋯O hydrogen bonds, which link the mol-ecules into an infinite network.
منابع مشابه
Crystal structure of 2,8,14-trimethyl-2,8,14-triazatetracyclo- [14(2,24),7,2(10,13)]tetracosa-4,6,10,12,16,18,19,21,23-nonaene-3,9,15-trione.
both as crystals and in solution.1–3 A cyclic structure containing N-methylamide can be easily constructed, since the cis preference arranges two moieties attached to the N-methylated amide close to each other. In this paper, we report on the crystal structure of 2,8,14-trimethyl-2,8,14-triazatetracyclo[142,24,7,210,13]tetracosa-4,6,10,12,16,18,19,21,23-nonaene3,9,15-trione (1, Fig. 1), which w...
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Reaction of Meldrum's acid with 3,4-bis(chloromethyl)-2,5-dimethylthiophene (1) or 3,4-bis(bromomethyl)-2,5-dimethylthiophene (2) produces the kinetically favored C,O-dialkylation product, 1,3,7,7-tetramethyl-4H,10H-6,8,9-trioxa-2-thiabenz[f]azulen-5-one (4). Recrystallization of 4 from refluxing methanol results in the methanolysis product 5-(4-methoxymethyl-2,5-dimethylthiophen-3-ylmethyl)-2,...
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