Evaluation of the Synthetic Scope and the Reaction Pathways of Proton‐Coupled Electron Transfer with Redox‐Active Guanidines in C−H Activation Processes
Proton‐coupledelectrontransfer (PCET) is currently intensively studied because of its importance in synthetic chemistry and biology. In recent years it was shown that redox‐active guanidines are capable PCET reagents for the selective oxidation of organic molecules. In this work, the scope of their PCET reactivity regarding reactions that involve C−H activation is explored and kinetic studies carried
Hair shaping composition comprising at least one polyguanidine other than hydroxide
申请人:Malle Gerard
公开号:US20060269498A1
公开(公告)日:2006-11-30
Disclosed herein is a ready-to-use cosmetic composition for shaping keratin fibers, comprising, in a cosmetically acceptable medium, as active agent for shaping, a polyguanidine not belonging to the hydroxide family. Also disclosed herein is a kit comprising at least two compartments to be brought into contact to form the ready-to-use composition. Further disclosed herein is a method for shaping keratin fibers comprising applying this composition to the keratin fibers.
Leffek, Kenneth T.; Pruszynski, Przemyslaw; Thanapaalasingham, Kohila, Canadian Journal of Chemistry, 1989, vol. 67, p. 590 - 595
作者:Leffek, Kenneth T.、Pruszynski, Przemyslaw、Thanapaalasingham, Kohila
DOI:——
日期:——
Bent and twisted: the electronic structure of 2-azapropenylium ions obtained by guanidine oxidation