Solvent-free catalysed synthesis of tetrahydropyran odorants: the role of SiO

Alexandra Macedo; Edison P. Wendler; Alcindo A. Dos Santos; Julio Zukerman-Schpector; Edward R. T. Tiekink

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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Solvent-free catalysed synthesis of tetrahydropyran odorants: the role of SiO

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Author(s):	Alexandra Macedo ^[1] ; Edison P. Wendler ^[2] ; Alcindo A. Dos Santos ^[3] ; Julio Zukerman-Schpector ^[4] ; Edward R. T. Tiekink ^[5] Total Authors: 5
Affiliation:	^[1] Universidade Federal de São Carlos. Departamento de Química - Brasil ^[2] Universidade Federal de São Carlos. Departamento de Química - Brasil ^[3] Universidade de São Paulo. Instituto de Química - Brasil ^[4] Universidade Federal de São Carlos. Departamento de Química - Brasil ^[5] University of Malaya. Department of Chemistry - Malásia Total Affiliations: 5
Document type:	Journal article
Source:	Journal of the Brazilian Chemical Society; v. 21, n. 8, p. 1563-1571, 2010-00-00.
Abstract
An efficient, green and solvent-free catalysed Prins-cyclization reaction based on the simple grinding of an aldehyde and a homoallylic alcohol in the presence of catalytic amount of p-TSA on silica gel is reported. By this protocol were synthesized tetrahydropyran odorants including commercial Florol® and Clarycet®, in one and two steps respectively. (AU)

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