(4S)-(−)-4-Benzyl-2,2-dimethyl-3-o-toluoyl-1,3-oxazolidine
نویسندگان
چکیده
The absolute configuration of the title compound, C(20)H(23)NO(2), has been confirmed as 4S. The benzyl residue and H atom at the asymmetric C-atom centre occupy pseudo-axial and bis-ectional positions, respectively. The oxazolidine ring adopts an envelope conformation. In the crystal structure, the mol-ecular packing is stabilized by non-classical C-H⋯O hydrogen bonds.
منابع مشابه
3-(4,6-Dichloro-1,3,5-triazin-2-yl)-2,2-dimethyl-1,3-oxazolidine
In the title compound, C(8)H(10)Cl(2)N(4)O, the dichloro-substituted triazine ring and the quasi-plane of the five-membered dimethyl-substituted oxazolidine unit, in which the O atom lies 0.228 (1) Å out of the least-squares plane, are close to being coplanar [dihedral angle = 4.99 (10)°]. In the crystal, mol-ecules are linked by inter-molecular C-H⋯Cl inter-actions, forming chains extend along...
متن کامل(4S)-Benzyl 4-isopropyl-5-oxo-1,3-oxazolidine-3-carboxylate
In the crystal structure of the title compound, C(14)H(17)NO(4), obtained by the reaction of N-benzoxycarbonyl-l-valine, paraformaldehyde and 4-methyl-benzene-sulfonic acid, mol-ecules are linked by C-H⋯O hydrogen bonds, generating linear chains parallel to the a axis. C-H⋯π inter-actions of stacked benzene rings also provide stability for the crystal structure.
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The title compound, C(21)H(21)N(3)O(7)S, contains an oxazolidinone ring and a sulfonamide group, both characteristic for biologically and pharrmaceutically active compounds. Both stereogenic centres reveal an S absolute configuration. The two oxazolidinone rings are in an envelope conformation with the methyl-ene carbon flap atoms deviating by 0.428 (1) and 0.364 (2) Å from the best least-squar...
متن کامل(4R)-4-Benzyl-3-{(4S)-4-chloro-4-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]butanoyl}-1,3-oxazolidin-2-one
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متن کاملCrystal structure of 3-C-(N-benzyloxycarbonyl)aminomethyl-3-deoxy-1,2:5,6-di-O-isopropylidene-α-d-allofuranose
The title compound, C21H29NO7 (1) [systematic name: benzyl ({(3aR,5S,6R,6aR)-5-[(R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-di-methyl-tetrahydro-furo[2,3-d][1,3]dioxol-6-yl}meth-yl)carbamate], consists of a substituted 2,2-di-methyl-tetra-hydro-furo[2,3-d][1,3]dioxolane skeleton. The furan-ose ring adopts an envelope conformation close to C 3-exo, where the C atom substituted by the benzyl carbamat...
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عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2010