منابع مشابه
Phenyl 2,3-O-isopropylidene-1-thio-α-d-rhamnopyranoside
In the title compound, C(15)H(20)O(4)S, a dioxolane ring is fused to the pyran ring of the sugar which carries a thio-phenyl substituent on the anomeric C atom. The dioxolane ring adopts an envelope conformation and the pyran ring system a distorted (4)C(1) chair. The structure is stabilized by O-H⋯O hydrogen bonds, forming centrosymmetric dimers that generate an R(2) (2)(10) ring motif. Additi...
متن کاملPhenyl 2,3,4-tri-O-benzyl-1-thio-α-d-mannopyranoside monohydrate
In the title compound, C(33)H(34)O(5)S·H(2)O, the mannopyran-oside ring adopts a chair conformation with the 2-α-thio-phenyl group occupying an axial position. One of the pendant benzyl groups is disordered over two sets of sites in a 0.5:0.5 ratio. In the crystal, the water mol-ecule makes two O-H⋯O hydrogen bonds to an adjacent sugar mol-ecule with the O atoms of the primary alcohol and ether...
متن کاملPhenyl 4,6-di-O-acetyl-2,3-dideoxy-1-thio-α-d-erythro-hex-2-enopyranoside
The pyranosyl ring in the title compound, C(16)H(18)O(5)S, adopts an envelope conformation, with the acetyl groups in equatorial positions. In the crystal, weak C-H⋯O inter-actions link the molecules into chains.
متن کاملSynthesis and Biological Screening of 5-{[(4,6-Disubstituted pyrimidine-2-yl)thio]methyl}-N-phenyl-1,3,4-thiadiazol-2-amines
A number of substituted-α,β-unsaturated carbonyl compounds (1a-i) were prepared by Claisen-Schmidt condensation of substituted acetophenone with selected araldehydes, which on cycloaddition with thiourea furnished 4,6-disubstituted pyrimidine-2-thiols (2a-i). Reaction of (2a-i) with ethyl chloroacetate followed by condensation with hydrazine hydrate yielded 2-[(4,6-disubstituted pyrimidine-2-yl...
متن کاملPhenyl 2-amino-N,6-O-dibenzyl-2,3-N,O-carbonyl-2-deoxy-1-thio-β-d-glucopyranoside
In the crystal structure of the title compound, C(27)H(27)NO(5)S, the pyran-ose ring adopts a (4)C(1) chair conformation with puckering parameters Q = 0.639 (2) Å, θ = 174.11 (18) and ϕ = 256 (2)°. The presence of the 2,3-trans-oxazolidinone fixes the conformation of the pyran-ose ring. The phenyl group attached to the S atom and the benzyl group bonding to the N atom are each disordered over t...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 1921
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja01441a024