{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T04:57:52Z","timestamp":1787029072940,"version":"build-2736575974"},"reference-count":72,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2013,10,16]],"date-time":"2013-10-16T00:00:00Z","timestamp":1381881600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Tonsil Actisil FF, which is a commercial bentonitic clay, promotes the formation of cycloveratrylene macrocycles and benzyl oligomers from the corresponding benzyl alcohols in good yields under microwave heating and infrared irradiation in the absence of solvent in both cases. The catalytic reaction is sensitive to the type of substituent on  the aromatic ring. Thus, when benzyl alcohol was substituted with a methylenedioxy,  two methoxy or three methoxy groups, a cyclooligomerisation process was induced. Unsubstituted, methyl and methoxy benzyl alcohols yielded linear oligomers. In addition, computational chemistry calculations were performed to establish a validated mechanistic pathway to explain the growth of the obtained linear oligomers.<\/jats:p>","DOI":"10.3390\/molecules181012820","type":"journal-article","created":{"date-parts":[[2013,10,16]],"date-time":"2013-10-16T12:20:47Z","timestamp":1381926047000},"page":"12820-12844","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Synthesis of Cycloveratrylene Macrocycles and  Benzyl Oligomers Catalysed by Bentonite under Microwave\/Infrared and Solvent-Free Conditions"],"prefix":"10.3390","volume":"18","author":[{"given":"Ren\u00e9","family":"Miranda","sequence":"first","affiliation":[{"name":"Departamento de Ciencias Qu\u00edmicas, Campo 1, Facultad de Estudios Superiores Cuautitl\u00e1n, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Av 1o de Mayo s\/n, Sta. Ma Las Torres,  Cuautitl\u00e1n Izcalli 54740, Estado de M\u00e9xico, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Omar","family":"Valencia-V\u00e1zquez","sequence":"additional","affiliation":[{"name":"Departamento de Ciencias Qu\u00edmicas, Campo 1, Facultad de Estudios Superiores Cuautitl\u00e1n, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Av 1o de Mayo s\/n, Sta. Ma Las Torres,  Cuautitl\u00e1n Izcalli 54740, Estado de M\u00e9xico, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos","family":"Maya-Vega","sequence":"additional","affiliation":[{"name":"Departamento de Ciencias Qu\u00edmicas, Campo 1, Facultad de Estudios Superiores Cuautitl\u00e1n, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Av 1o de Mayo s\/n, Sta. Ma Las Torres,  Cuautitl\u00e1n Izcalli 54740, Estado de M\u00e9xico, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"In\u00e9s","family":"Nicol\u00e1s-V\u00e1zquez","sequence":"additional","affiliation":[{"name":"Departamento de Ciencias Qu\u00edmicas, Campo 1, Facultad de Estudios Superiores Cuautitl\u00e1n, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Av 1o de Mayo s\/n, Sta. Ma Las Torres,  Cuautitl\u00e1n Izcalli 54740, Estado de M\u00e9xico, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yolanda","family":"Vargas-Rodriguez","sequence":"additional","affiliation":[{"name":"Departamento de Ciencias Qu\u00edmicas, Campo 1, Facultad de Estudios Superiores Cuautitl\u00e1n, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Av 1o de Mayo s\/n, Sta. Ma Las Torres,  Cuautitl\u00e1n Izcalli 54740, Estado de M\u00e9xico, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9","family":"Morales-Serna","sequence":"additional","affiliation":[{"name":"Instituto de Qu\u00edmica, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Circuito Exterior,  Ciudad Universitaria, Coyoac\u00e1n 04510, M\u00e9xico, D.F., Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Er\u00e9ndira","family":"Garc\u00eda-R\u00edos","sequence":"additional","affiliation":[{"name":"Instituto de Qu\u00edmica, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Circuito Exterior,  Ciudad Universitaria, Coyoac\u00e1n 04510, M\u00e9xico, D.F., Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manuel","family":"Salm\u00f3n","sequence":"additional","affiliation":[{"name":"Instituto de Qu\u00edmica, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Circuito Exterior,  Ciudad Universitaria, Coyoac\u00e1n 04510, M\u00e9xico, D.F., Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2013,10,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"119","DOI":"10.1002\/cctc.201000337","article-title":"Friedel\u2013Crafts alkylation of aromatics with benzyl alcohol over gold-modified silica","volume":"3","author":"Taylor","year":"2011","journal-title":"ChemCatChem"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1761","DOI":"10.3390\/molecules16021761","article-title":"Effects of bentonite on p-methoxybenzyl acetate: A theoretical model for oligomerization via an electrophilic-substitution mechanism","volume":"16","author":"Miranda","year":"2011","journal-title":"Molecules"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1016\/S1381-1169(97)00107-6","article-title":"Oligomerization of benzylic alcohols and its mechanism","volume":"126","author":"Fuentes","year":"1997","journal-title":"J. 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