The Highly Diastereoselective Synthesis of Oxazolidines Derived from Ketones and Pseudoephedrine or Ephedrine.
✍ Scribed by Philip C. Bulman Page; et al. et al.
- Publisher
- John Wiley and Sons
- Year
- 2005
- Weight
- 24 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0931-7597
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📜 SIMILAR VOLUMES
The standard massic energies of combustion of three substituted bicyclic compounds: (4R\*,4'R\*,5R\*,5'R\*)-5,5'-diphenyl-3,3',4,4'-tetramethyl-2,2'-bioxazolidine; 4]-oxazine (these compounds will be referred as C1, C2, and C3, respectively, and their formulae are given in figure 1) were determine
## Abstract A several novel 1,3,4‐oxadiazinan‐2‐thiones have been synthesized by the cyclization of β‐hydrazino‐alcohols with either carbon disulfide or 1,1′‐thiocarbonyldiimidazole (TCDI).
Carbon-13 N M R chemical shifts in various oxazolidinea derived from pseudoephedrine and their corresponding N-borane adducts and oxazolidinium salts are examined. The observed shifts can be rationalized on the basis of steric factors, owing to the simiIarity between the borane adducts and the oxazo