作者:V. B. Vol’eva、T. I. Prokof’eva、I. S. Belostotskaya、N. L. Komissarova、D. B. Gorbunov、L. N. Kurkovskaya
DOI:10.1134/s1070428011090089
日期:2011.9
Alkylation of pyrocatechol with tert-butyl alcohol in benzene in the presence of sulfuric acid gave 3,5-di-tert-butylbenzene-1,2-diol in a higher yield than in analogous reaction with tert-butyl alcohol. This result was rationalized by reduction of inhibitory effect of liberated water, formation of heterogeneous system, and occurrence of the alkylation process in nonpolar organic phase. Intermediate
邻苯二酚与烷基化叔丁基苯在硫酸的存在下醇,得到3,5-二-叔在比在具有类似的反应更高的收率丁苯-1,2-二醇叔丁基醇。通过降低释放的水的抑制作用,形成非均相系统以及在非极性有机相中发生烷基化过程,可以使该结果合理化。鉴定出中间产物,发现它们经历了分子内和分子间叔丁基的转移,形成了更稳定的3,5-二叔丁基苯-1,2-二醇。形成p -二-叔丁基苯表明苯参与了交叉烷基化过程。