Stereochemistry of alkaline cleavage of cis- and trans-1-benzyl-4-methyl-1-phenylphosphorinanium bromide
✍ Scribed by Marsi, Kenneth L.; Clark, Roger T.
- Book ID
- 121207438
- Publisher
- American Chemical Society
- Year
- 1970
- Tongue
- English
- Weight
- 364 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0002-7863
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📜 SIMILAR VOLUMES
## Abstract The reaction of homophthalic anhydride and __N__‐(1‐methyl‐1__H__‐pyrrol‐2‐yl‐methylidene)‐benzylamine in boiling benzene afforded as a main product the expected substituted __trans__‐1,2,3,4‐tetrahydroisoquinoline‐4‐carboxylic acid **5**. The carboxylic group of **5** was transformed i
## Abstract The ^1^H NMR spectra of isomeric 5,6‐dimethyl‐2‐oxo‐1,4‐dioxans have been recorded and the pertinent chemical shifts and coupling constants determined. The parameters indicate that both isomers exist as an equilibrium mixture of interconverting half chair ring conformations.
## Abstract Discrepancies between chiroptical data from the literature and our determination of the structure of the title compounds (+)‐**5** and (+)‐**9a** were resolved by an unambiguous assignment of their absolute configuration. Accordingly, the dextrorotatory __cis__‐3‐hydroxy esters have (3_