94723-93-0Relevant articles and documents
MELANIN GENERATION INHIBITOR AND WHITENING AGENT
-
Paragraph 0078; 0079, (2017/04/20)
PROBLEM TO BE SOLVED: To provide a melanin generation inhibitor and a whitening agent that are excellent in whitening effect and also excellent in safety and temporal stability. SOLUTION: The invention provides a melanin generation inhibitor containing a compound represented by formula [1] as an active ingredient, a whitening agent, as well as a melanin generation inhibiting method and a whitening method by applying such agents to the skin. (R1, R2, R4, and R5 are each independently H, a hydroxyl group, an alkyl group of C1-4, or -O-C(=O)R6; R6 is an alkyl group of C1-4; R3 is H, an alkyl group of C1-4, or -C(=O)R7; and R7 is an alkyl group of C1-8.) SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT
Stereoisomerically pure trisubstituted vinylaluminum reagents and their utility in Copper-Catalyzed enantioselective synthesis of 1,4-Dienes containing Z or e alkenes
Akiyama, Katsuhiro,Gao, Fang,Hoveyda, Amir H.
supporting information; body text, p. 419 - 423 (2010/04/05)
"Chemical Equation Presented" The desired isomer of a chiral 1,4-diene containing an E or Z double bond can be accessed readily by a regio- and stereoselective hydroalumination of silyl-substituted alkynes and subsequent enantioselective copper-catalyzed
Enantioselective synthesis of (-)-cytoxazone and (+)-epi-cytoxazone, novel cytokine modulators via Sharpless asymmetric epoxidation and l-proline catalyzed Mannich reaction
Paraskar, Abhimanyu S.,Sudalai, Arumugam
, p. 5756 - 5762 (2007/10/03)
A short and efficient enantioselective synthesis of (-)-cytoxazone and its stereoisomer (+)-epi-cytoxazone, novel cytokine modulators, has been described with good yield and enantioselectivity. Ti-catalyzed Sharpless asymmetric epoxidation of allyl alcoho
Pungent principal of Alpinia galangal (L.) Swartz and its applications
Yang, Xiaogen,Eilerman, Robert G.
, p. 1657 - 1662 (2007/10/03)
The pungent principal of galangal [Alpinia galangal (L.) Swartz] rhizomes was isolated and identified as 1'-acetoxychavicol acetate (galangal acetate). Galangal acetate exhibits a unique pungent sensation, which is less intense than that of capsaicin and without a lingering effect. Applications of galangal acetate were tested in beverages, sweet goods, dressings, and personal care products. In many applications, galangal acetate is preferred to other pungent ingredients. It can be used as an alcohol enhancer or an alcohol replacer in alcohol and alcohol-free beverages. Galangal acetate is not stable in aqueous solutions and undergoes hydrolysis/isomerization reactions. Therefore, galangal acetate was absent in galangal essential oil obtained by steam distillation. However, galangal acetate was found as one of the major volatile components of the galangal rhizomes by headspace GC analysis. The stability of galangal acetate was studied under various conditions.
A mild synthesis of coumaryl, coniferyl, sinapyl aldehydes and alcohols
Daubresse,Francesch,Mhamdi,Rolando
, p. 369 - 371 (2007/10/02)
Acetylconiferyl aldehyde is obtained from acetylvanillin by a Wittig reaction under phase-transfer conditions; basic hydrolysis gives coniferyl aldehyde, or after reduction with sodium borohydride affords coniferyl alcohol. This method is extended to the sinapyl and coumaryl series.
Process for production of diltiazem hydrochloride
-
, (2008/06/13)
New route to diltiazem hydrochloride of the formula: STR1 in which the starting cinnamyl alcohols are epoxidized by a special asymmetric synthesis followed by a series of stereospecific reactions; no optical resolution is required at any stage.
