as the mass standard. The i0 principal ions in the mass spectrum of II, m/z (relative intensity, %): 154 (61), 126 (66), 125 (8), Iii (84), 94 (9), 93 (ii), 72 (7), 70 (i00), 67 (i0), 42 ( 22).
The reaction of amines with methyl propiolate
โ Scribed by W. Bottomley
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- French
- Weight
- 121 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Diels-Alder reaction of methyl propiolate with 1-vinylcycloalkenes was used to assess the influence of ring strain on the regioselectivity of such cycloadditions: the ratio of 1,2,3-to 1,2,4-adducts increased with increasing size of the cycloalkene.
The reactlon of ketenealkylsilylacetals with ethyl proplolate m the presence of different Lewis acids IS reported to give Michael-type additions or a [2+2] cycloadditlon.
Kinetic studies established that the monomethylation of a primary amine leads to significantly higher reaction rates with glycidyl ethers. The relative rates for approximately 25 amines were determined in an alcohol solvent under pseudo-firstorder conditions (excess epoxy). The rates were referenced