DMF and DMSO catalyse the reaction of butanol with PhNCO but inhibit that with aliphatic isocyanates, due to formation of an active 1 : 1 charge transfer complex with the aromatic isocyanate. Similarity was found in the mode of catalysis of the urethane reaction with these solvents to that with tert
✦ LIBER ✦
Selectivity of monomeric metaphosphate reactions with alcohols in polar aprotic solvents
✍ Scribed by Fausto Ramirex; James F Marecek; Shrishailam S. Yemul
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- French
- Weight
- 239 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
Evidence is presented for selectivity in the reaction of metaphosphate, W I -, with methanol in preference to t-butanol in acetonitrile solution. In dichloromethane so ution there is also evidence for preferential nucleophilic solvation of reactant by methanol vs. t-butanol.
Following the direct observation of the monomeric metaphosphate ion, pO3-, in the gas
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