Electrophilic Addition to Alkoxyethenes. XV. Influence of Structure and Temperature on the Rate of Ethanol Addition
Rates of acid-catalyzed (in the presence of HCl) addition of ethanol to various alkyl vinyl ethers in the system cyclohexane-ethanol (4:1 by volume) have been measured at 10, 20, 25, 30, and 40 deg C.Linear regression equations have been found that adequately describe the influence of temperature and the substrate structure on the rate constant.The effect of the alkyl substituents includes variable contribution of the steric factor; bulky substituents facilitate the reaction.
Nedolya, N. A.,Baranskii, V. A.,Trofimov, B. A.
p. 287 - 290
(2007/10/03)
COBALT (II) CHLORIDE CATALYSED ADDITION OF ALCOHOLS ON VINYL ETHERS: A CONVENIENT SYNTHESIS OF MIXED ACETALS
Hydroxyl compounds readily add to Vinyl ethers in presence of a catalytic amount of Cobalt (II) Chloride, to give high yields of mixed acetals.
Igbal, Javed,Srivastava, Rajeev Ranjan,Gupta, Kiran Bala,Khan, M. Amin
p. 901 - 906
(2007/10/02)
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