organic compounds
In the title compound, C7H11O3PS4, the five-membered ring is in an envelope conformation. The average values of the S—Csp3 and S—Csp2 bond lengths are 1.813 (6) and 1.755 (8) Å, respectively. The crystal packing is stabilized by weak intermolecular C—HO hydrogen bonds.
organic compounds
The title compound, C14H11ClN2, is the key intermediate in the synthesis of the antihistaminic drug loratadine. The benzene and pyridine rings are connected through the ethylene bridge and are coplanar. There are intermolecular π–π and C—ClN interactions and weak hydrogen bonds stabilizing the packing.
organic compounds
The title compound (alternative name dimethyl croconate), C7H6O5, is the first example of a croconate ether. The molecule is essentially planar and exhibits a local symmetry (C2v) that is different from that shown by the croconate dianion (C5h), indicating that the geometry of these compounds is very sensitive to the electric charge state.