Organic reactions at high pressure. Cycloadditions of enamines and dienamines
β Scribed by Dauben, William G.; Kozikowski, Alan P.
- Book ID
- 126014173
- Publisher
- American Chemical Society
- Year
- 1974
- Tongue
- English
- Weight
- 361 KB
- Volume
- 96
- Category
- Article
- ISSN
- 0002-7863
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The (R,S)-aminal 3 , prepared from glycine methyl ester hydrochloride, methylamine, and pivalaldehyde,l'"l was treated with 14 chiral carboxylic or sulfonic acids. In two cases one of the two possible diastereomeric salts crystallized selectively: the salt from ( -)-2,3 :4,6-di-O-isopropylidene-2-ke
Phospholes ,synthesised by an improved procedure, undergo Dials-Alder reactions at high pressure but not dipolar cycloadditions to nitrile oxides (which deoxygenate) or diaxomethanes ( which can, however, trap the phosphole oxides) . Diphenylketene gives an unexpected spirophosphorane with phosphole