Alkylation of phenolic or thiophenolic compounds
阅读：892发布：2022-12-17
专利汇可以提供Alkylation of phenolic or thiophenolic compounds专利检索，专利查询，专利分析的服务。并且Alkylating a phenolic or thiophenolic compound with an alkylating agent in contact with a catalyst comprising silica, metal oxide and nitrogen-containing Lewis base.，下面是Alkylation of phenolic or thiophenolic compounds专利的具体信息内容。
2. The improvement of claim 1 wherein said catalyst comprises from about 60 percent to about 90 percent by weight of silica and from about 5 percent to about 40 percent by weight of alumina.
2. ammonia;
3. alkylamines selected from the group consisting of methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, propylamine, dipropylamine, tripropylamine, butylamine, dibutylamine, tributylamine, pentylamine, dipentylamine, tripentylamine, hexylamine, dihexylamine and trihexylamine;
3. The improvement of claim 2 wherein said catalyst comprises silica, alumina and a heterocyclic nitrogen-containing Lewis base.
4. The improvement of claim 3 wherein said heterocyclic nitrogen-containing Lewis base is quinoline.
4. alkylenepolyamines having up to 4 alkylene groups of two to 10 carbon atoms each and from two to 5 nitrogen atoms;
5. alkanolamines selected from the group consisting of ethanolamine, diethanolamine and triethanolamine;
5. The improvement of claim 3 wherein said heterocyclic nitrogen-containing Lewis base is pyridine.
6. The improvement of claim 3 wherein said heterocyclic nitrogen-containing Lewis base is morpholine.
6. aminoalkyl alkanolamines in which each alkyl contains from two to 10 carbon atoms;
7. N-hydroxyalkyl-aminoalkyl alkanolamines in which each alkyl contains from two to 10 carbon atoms;
7. The process of claim 1 wherein said phenolic compound is a phenol.
8. The process of claim 7 wherein said phenolic compound is p-hydroxyanisole.
8. arylamines in which the aryl is an aromatic hydrocarbon nucleus of from one to three condensed rings;
9. phenylenediamines; and,
9. The process of claim 8 wherein said alkylating agent is tertiary-butyl alcohol.
10. cyclohexylamine.
10. The process of claim 8 wherein said alkylating agent is isobutylene.
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