A method was developed for the synthesis of 1-alkylethyl benzoates (acylals) in yields of 80–90% and higher.
The following compounds were synthesized for the first time by this method: CH3CH(OR)OCOC6H5, in which R=(CH3)2CH, C4H9, C6H13, C6H11, C6H5, p-CH3C6H4, o-CH3C6H4.
Compounds of this type in which R is an alkyl group are unstable to keeping and are extremely sensitive to acid reagents and to heat.
Phosphoric oxide is an extremely active catalyst for the polymerization of alkyl vinyl ethers.
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Shostakovskii, M.F., Gershtein, N.A. & Neterman, V.A. Benzoic acylals. Russ Chem Bull 8, 1916–1920 (1959). https://doi.org/10.1007/BF00914767
- Active Catalyst