109176-12-7Relevant articles and documents
Process for preparing furan compositions
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, (2008/06/13)
A process for preparing furans of the formula (I) STR1 by reacting a furanone of the formula STR2 with an organic orthoacid or an orthosilicate in the presence of an acid catalyst at an elevated temperature.
4-carbalkoxy-2-ethyl-2,3-dihydrofurans
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, (2008/06/13)
2,3-Dihydrofurans having highly desirable odor characteristics closely mimicking that of natural products are provided herein. The 2,3-dihydrofurans correspond to the formula STR1 wherein R' is an alkyl group having from 1 to 4 carbon atoms, R** is an alkyl group having from 1 to 5 carbon atoms, R1 is an alkyl group having from 1 to 4 carbon atoms, R2 is hydrogen or an alkyl group having from 1 to 6 carbon atoms, and R3 and R4 are hydrogen or a methyl group. The 2,3-dihydrofuran compounds are useful in the preparation of fragrance compositions and fragranced articles and can be employed in conjunction with known fragrance materials to augment or enhance the aromas thereof.