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1.
The crystal and molecular structures of two reaction products of geminal dicyano oxirane with thiohydantoine (compound I) and thioxobenzoxazole (compound II)
Ivan Leban, Alenka Majcen Le Marechal, Albert Robert, 1993, original scientific article

Abstract: The crystal and molecular structures of two reaction products of geminal dicyano oxiranes with thiohydantoione and thioxobenzoxazole have been determinated from ▫$Mo-K_\alpha$▫ X-ray diffraction data. The two reaction products were: 2H-2-(p-tolyl)-imidazol[1,2-b]thiazole-3,6-dione (compound I) and Z-3-benzoxazole-3-phenyl-2-oxo-2-propanenitrile (compound II) with the following crystal data at 293(1) K: Compound I, ▫$C_{12}H_{10}N_2O_2S$▫, monoclinic ▫$P2_1/c$▫, a=15057(3), b=5.200(3), c=14.724(4) Å, ▫$\beta=104.24(3)°$▫, Z=4; final R and ▫$R_w$▫ values were 0.034 and 0.049 for1647 observed reflexions. Compound II, ▫$C_{16}H{10}N_2O_2$▫, monoclinic, ▫$P2_1/n$▫, a=14.396(3), b=4.326(1), c=21.335(4) Å, ▫$\beta-107.79(1)°$▫, Z=4;final R and ▫$R_w$▫ values 0.040 and 0.053 for 1516 observed reflections.
Keywords: organic chemistry, crystal structure, chemical reactions, oxiranes, coordination compounds, structural chemistry
Published: 05.07.2017; Views: 535; Downloads: 47
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2.
A novel approach to N,N'-dimethyl and N,N'-ethylene bridged dibenzodithiadiazafulvalane
Zdenko Časar, Dominique Lorcy, Ivan Leban, Alenka Majcen Le Marechal, 2002, original scientific article

Abstract: A novel approach to electron rich olefins, such as dibenzodithiadiazafulvalenes (DTDAFs) is reported. These compounds have been prepared by alkalination of the benzothiazole-2-thione ring. The first crystal structure of the N,N'-dimethyl dibenzoDTDAF dicationis also reported.
Keywords: organic chemistry, benzothiazole, thermal rearrangement, dithiadiazafulvalene, dication
Published: 17.08.2017; Views: 303; Downloads: 69
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