Reaction of 2-aminothiazoline (1) with a,b-unsaturated carbonyl compounds 2 under mild conditions (acetone, room temperature) gives two diastereomers 5-R-7-hydroxy-5H-tetrahydrothiazolo[2,3-a]pyrimidines 3. According to 1 H NMR, major isomers of 3 have axial OH-groups whereas minor isomers have equa
Crystal structure and stereochemistry of ingol-3,7,8,12-tetraacetate
β Scribed by H. Lotter; H.J. Opferkuch; E. Hecker
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- French
- Weight
- 128 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
The anhydrous rubidium tetraacetato lanthanate, RbLa(CH 3 COO) 4 , is obtained together with Rb 2 La(CH 3 COO) 5 (H 2 O) as colourless single crystals from a 1 : 2 mixture of Rb 2 CO 3 and La(CH 3 COO) Β΄1.5 H 2 O in acetic acid by slow evaporation. The crystal structure [orthorhombic, Pnnm, Z = 2, a
## Abstract The exclusive product of thermal rearrangement of (Β±)β7βisopropylideneβ2,3βdiazabicyclo[2.2.1]heptβ2βene __N__βoxide **(2)** has been identified as the title compound **(1).** The compound crystallizes in the orthorhombic space group __Pbca__ (No. 61), with __a__= 8.953 (2), __b__= 12.7
## Abstract Crystals of the title compound are triclinic, __a__ = 27.87 Γ , __b__ = 10.77 Γ , __c__ = 12.94 Γ , Ξ± 73.1Β°, Ξ² 116.1Β°, Ξ³ 120.0Β°, space group P1. The structure consists of octanuclear ions: Eight Cd(II) ions are found at the corners of a distorted cube, the center of the cube is occupied by