4-Benzyl-5-ethylthio-3H-1,2-dithiole-3-thione

Abstract

1996) and we are now studying their potential biological activity. In order to correlate chemotherapeutic properties with structure, we have started a long-aim project regarding the crystal structure determination of new 3H-1,2-dithiole-3-thione derivatives, of which the title compound, (7), is a part. S~S (7)Compound (7) crystallizes in Pi with two independent molecules in the asymmetric unit, labelled (A) and (B) (Fig. 1). Interatomic distances and angles are very AbstractThe title compound, C12H12S4, crystallizes in Pi with two independent molecules in the asymmetric unit labelled (A) and (B). In both molecules, the phenyl and 3H-1,2-dithiole-3-thione rings are almost perpendicular to each other, the main difference being the position of the ethyl group which lies in the same plane as the heterocyclic ring in (A) but points outwards in (B). The crystal packing is governed by short S.--S interactions. Comment AbstractFour 9-alkylthiophenanthrenes, namely, 9-methylthiophenanthrene, C15H12S, (1), 9-ethylthiophenanthrene, C16H14S, (2), 9-propylthiophenanthrene, C17H16S, (3) and 9-butylthiophenanthrene, CI8H18S, (4), have been characterized by X-ray analysis. Compound (1) crystallizes in space group P2~ with two molecules, and the other three compounds, in a novel display of isostructurality, in space group P21/c, with one molecule per asymmetric unit.

A straightforward and novel synthesis of sulfur compounds from aliphatic cyclic ketones and CS2

“…The X-ray data of 1a shows that the molecule (Figure 2) is essentially planar, with maximum deviation being 0.026 Å (C6) and, although the S-S separation is so far the longest found [11], the geometric parameters (Table 2) follow the structural pattern that characterizes the 1,2-dithiole-3-thiones, viz. bond distances: S-S, 2.047-2.050 Å ; C‫ס‬S, 1.655-1.669 Å ; and C-S, 1.731-1.762 Å , with the endocyclic angle subtended at S2 being larger than the one at S1.…”