10527-66-9Relevant articles and documents
Mannich-like three-component synthesis of α-branched amines involving organozinc compounds: ReactIR monitoring and mechanistic aspects
Le Gall, Erwan,Sengmany, Stéphane,Hauréna, Caroline,Léonel, Eric,Martens, Thierry
, p. 27 - 35 (2013)
The infra-red spectroscopic in situ examination of the Mannich-like three-component reaction between organozinc reagents, amines and aldehydes is described, revealing that two distinct pathways are favored, depending on the nature of the starting amine. While reactions involving primary amines proceed via in situ-formed imines, reactions involving secondary amines rather imply a hemiaminal as the key intermediate species.
Atom-efficient transition-metal-free arylation ofN,O-acetals using diarylzinc reagents through Zn/Zn cooperativity
Borys, Andryj M.,Gil-Negrete, Jose M.,Hevia, Eva
supporting information, p. 8905 - 8908 (2021/09/10)
Exploiting the cooperative action of Lewis acid Zn(C6F5)2with diarylzinc reagents, the efficient arylation ofN,O-acetals to access diarylmethylamines is reported. Reactions take place under mild reaction conditions without the need for transtion-metal catalysis. Mechanistic investigations have revealed that Zn(C6F5)2not only acts as a Lewis acid activator, but also enables the regeneration of nucleophilic ZnAr2species, allowing a limiting 50 mol% to be employed.
Skin
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Paragraph 0072, (2018/03/23)
PROBLEM TO BE SOLVED: To provide a skin care preparation suitable for a cosmetic (provided that quasi drugs are included) or the like, for detail, a skin care preparation having whitening effects, particularly preventive or improving effects against pigme
Skin care
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Paragraph 0116-0117, (2020/10/19)
PROBLEM TO BE SOLVED: To provide a skin care preparation suitable for preventing or ameliorating pigment deposition. SOLUTION: The skin care preparation comprises two compounds represented by general formula (1) [wherein R1is an aromatic group; R2is a hydrogen atom, alkyl or acyl; R3is a hydrogen atom or alkyl] and represented by general formula (2) [wherein R4is an aromatic group or hydrogen atom; R5and R6are each an aromatic group; R7and R8are mutually bonded to form a 2-8C nitrogen heterocyclic ring]. COPYRIGHT: (C)2013,JPOandINPIT