Ethyl (3)-3-[(3a,5,6,6a)-6-hy-droxy-2,2-di-methyl-tetra-hydro-furo[4,5-][1,3]dioxol-5-yl]-3-{(3)-3-[(3a,5,6,6a)-6-hy-droxy-2,2-di-methyl-tetra-hydro-furo[4,5-][1,3]dioxol-5-yl]-5-oxoisoxazolidin-2-yl}propano-ate chloro-form monosolvate.

The title compound, CHNO·CHCl, was obtained as a product of a double aza-Michael addition of hydroxyl-amine on a Chiron with a known absolute configuration. The enanti-opure compound crystallized as a chloro-form solvate, in space group 1, and diffraction data were collected at room temperature with Ag α radiation. The Flack parameter refined to = -0.

Deciphering the hydrogen-bonding scheme in the crystal structure of triphenylmethanol: a tribute to George Ferguson and co-workers.

The crystal structure of triphenylmethanol, CHO, has been redetermined using data collected at 295 and 153 K, and is compared to the model published by Ferguson et al. over 25 years ago [Ferguson et al. (1992).

(2SR,3RS)-Methyl 2-(adamantan-1-yl)-3-phenyl-sulfonyl-3-(pyridin-2-ylsulfan-yl)propano-ate dichloro-methane hemisolvate.

The title compound, C(25)H(29)NO(4)S(2) 0.5CH(2)Cl(2), was obtained as a racemate. The pyridine and phenyl rings are arranged face-to-face, giving a weak intra-molecular π-π inter-action [centroid-centroid separation = 3.

(R)-3,4,5-Tride-oxy-5,6-didehydro-1,2-O-(2,2,2-trichloro-ethyl-idene)-α-d-gluco-furan-ose-6,3-carbolactone: a new derivative of α-chloralose.

THE TITLE COMPOUND [SYSTEMATIC NAME: (R)-2-trichloro-methyl-3a,3b,7a,8a-tetra-hydro-5H-pyrano[2',3':4,5]furano[2,3-d][1,3]dioxol-5-one], C(9)H(7)Cl(3)O(5), a triyclic system that contains a central α-d-furan-ose ring cis-fused with a dioxolane ring as well as a δ-lactone ring, exhibits a twisted conformation. The CCl(3) group has an axial orientation. The furan-ose ring approximates an envelope conformation due to the α,β-unsaturated lactone functionality.