A structure–taste study of arylsulfonyl(cyclo)alkanecarboxylic acids
摘要:
A number of sweeteners contain a sulfonyl group. In our current search for new glucophores several new compounds 14 containing such group were obtained. A series of novel 1-phenylsulfonylcyklohexanecarboxylic acids and 2-arylsulfonylalkanecarboxylic acids was obtained and evaluated for their sweet taste quality. It has been found that methyl substituents are of the key importance for the activity of these compounds. (C) 2004 Elsevier Ltd. All rights reserved.
inhibitors bind with the 3-aryl-mercapto moiety in the selectivity pocket of Sirtuin 2, inducing a rearrangement of the active site. In contrast, 3-aryl-mercapto-nonalyl or palmitoyl derivatives are characterized by a switch in the binding mode blocking both the hydrophobic channel by the fatty acyl chain and the nicotinamide pocket by the 3-aryl-mercapto moiety.
Thiolesters. Reaction of Thiols with Acrylyl and Crotonyl Chlorides
作者:Alfred A. Schleppnik、Ferdinand B. Zienty
DOI:10.1021/jo01030a060
日期:1964.7
Direct aromatic tert-butylation during the synthesis of thiochroman-4-ones
作者:Stephen E. Clayton、Christopher D. Gabbutt、John D. Hepworth、B.Mark Heron
DOI:10.1016/s0040-4020(01)80335-5
日期:1993.1
The synthesis of thiochroman-4-ones from thiophenols and 3-methylbut-2-enoic acid effected by methane sulphonic acid is accompanied by tert-butylation of the aromatic ring. 3-Arylthiobutanoic acids, available using beta-butyrolactone, are efficiently cyclised in the same manner.
A structure–taste study of arylsulfonyl(cyclo)alkanecarboxylic acids
A number of sweeteners contain a sulfonyl group. In our current search for new glucophores several new compounds 14 containing such group were obtained. A series of novel 1-phenylsulfonylcyklohexanecarboxylic acids and 2-arylsulfonylalkanecarboxylic acids was obtained and evaluated for their sweet taste quality. It has been found that methyl substituents are of the key importance for the activity of these compounds. (C) 2004 Elsevier Ltd. All rights reserved.
Synthesis of 1-tetralones by intramolecular Friedel–Crafts reaction of 4-arylbutyric acids using Lewis acid catalysts
Intramolecular Friedel–Crafts reaction of 4-arylbutyric acids efficiently proceeded in the presence of catalytic amounts of Lewis acids such as Bi(NTf2)3 and M(OTf)3 (M=Bi, Ga, In and rare-earth metals) to form 1-tetralones. Chroman-4-one and thiochroman-4-one were also obtained in good yields from 3-phenoxypropionic acid and 3-phenylthiopropionic acid, respectively.