Uncatalyzed Reaction of Phenols and Naphthols with Methyl Cinnamates. A Simple Synthesis of 4-Arylchroman-2-ones and 1-Arylbenzo[f]chroman-3-ones
作者:Giovanna Speranza、Antonella Di Meo、Simona Zanzola、Gabriele Fontana、Paolo Manitto
DOI:10.1055/s-1997-1293
日期:1997.8
4-Arylchroman-2-ones and 1-arylbenzo[f]chroman-3-ones can be prepared in moderate to good yields by reaction of phenols or β-naphthols with p-substituted methyl cinnamates in o-xylene under reflux.
The present invention relates primarily to the use of one or a plurality of neoflavonoids of formula (I) and/or one or a plurality of physiologically acceptable salts of one or a plurality of neoflavonoids of formula (I) for flavor modification, in particular for altering or masking a bitter, astringent and/or metallic flavor impression of a bitter, astringent and/or metallic tasting substance and a corresponding method of flavor modification. The present invention further relates to certain mixtures and certain preparations fit for consumption containing one or a plurality of neoflavonoids of formula (I) and/or one or a plurality of physiologically acceptable salts of one or a plurality of neoflavonoids of formula (I).
Verwendung von Neoflavonoiden zur Geschmacksmodifizierung
申请人:Symrise AG
公开号:EP2570035B1
公开(公告)日:2014-06-18
FOODSTUFF (III)
申请人:SYMRISE AG
公开号:US20180360086A1
公开(公告)日:2018-12-20
Suggested is a food product comprising
(a) juice, marrow, flesh or peels or other components of at least one citrus fruit,
(b) at least one neoflavonoid as well as optionally
(c) further flavoring agents or flavor preparations,
providing that the component (b) is present in a sufficient amount to improve the sour and/or bitter taste of the component (a).
An efficient and fast synthesis of 4-aryl-3,4-dihydrocoumarins by (CF3SO3)3Y catalysis under microwave irradiation
作者:Cláudio E. Rodrigues-Santos、Aurea Echevarria
DOI:10.1016/j.tetlet.2007.04.144
日期:2007.6
A new and efficient synthesis of eleven 4-aryl-3,4-dihydrocoumarins, in which six are new compounds, was performed using (CF3SO3)(3)Y as catalyst under microwave irradiation. The target compounds were obtained in good yields (68-80%) and remarkable time (7-20 min) when compared to the literature reports (1-40 h). (c) 2007 Elsevier Ltd. All rights reserved.