A Ni-catalyzed asymmetric ring-openingreaction of 2-substituted cyclopropane-1,1-dicarboxylates with aliphatic amines has been accomplished using the chiral indane-trisoxazoline (In-TOX) ligand. This highly enantioselective reaction provides an efficient approach to a variety of chiral γ-substituted γ-amino acid derivatives, which are readily transformed into multifunctionalized piperidines and γ-lactams
Cosmetic/dermatological sunscreen compositions, suited for photoprotecting, e.g., the skin, lips, scalp and/or hair against the damaging effects of UV-radiation, contain thus effective amounts of at least one novel s-triazine compound tri-substituted with para-aminobenzalmalonate substituents.
[EN] S-TRIAZINE COMPOUNDS CONTAINING ONE AMINOSILOXANE GROUP AND TWO PARTICULAR PARA-AMINOBENZALMALONATE GROUPS; COSMETIC COMPOSITIONS CONTAINING SAID DERIVATIVES; USES OF SAID S-TRIAZINE DERIVATIVES<br/>[FR] COMPOSÉS DE S-TRIAZINE CONTENANT UN GROUPE AMINOSILOXANE ET DEUX GROUPES PARA-AMINOBENZALMALONATE PARTICULIERS ; COMPOSITIONS COSMÉTIQUES CONTENANT LESDITS DÉRIVÉS ; UTILISATIONS DESDITS DÉRIVÉS DE S-TRIAZINE
申请人:OREAL
公开号:WO2009074409A1
公开(公告)日:2009-06-18
The invention concerns novel s-triazine compounds containing one aminosiloxane group and two particular para-aminobenzalmalonate groups. The invention also concerns cosmetic or dermatological compositions intended for the photoprotection of keratinous materials, comprising at least one s-triazine compound containing one aminosiloxane group and two particular grafted para-aminobenzalmalonate groups in a cosmetically acceptable medium. The invention also concerns the use of at least one s-triazine compound containing one aminosiloxane group and two particular grafted para-aminobenzalmalonate groups in a cosmetic composition, as an agent for filtering for UV-A radiation.