Recommanded Product: 67-51-6. I found the field of Chemistry very interesting. Saw the article Intermolecular Dearomatization of Naphthalene Derivatives by Photoredox-Catalyzed 1,2-Hydroalkylation published in 2020.0, Reprint Addresses Zhang, X; Mei, TS; You, SL (corresponding author), Chinese Acad Sci, Ctr Excellence Mol Synth, State Key Lab Organometall Chem, Univ Chinese Acad Sci,Shanghai Inst Organ Chem, 345 Lingling Lu, Shanghai 200032, Peoples R China.; Zhang, X (corresponding author), Fujian Normal Univ, Coll Chem & Mat Sci, Fujian Key Lab Polymer Sci, Fujian Prov Key Lab Adv Mat Oriented Chem Engn, 32 Shangsan Lu, Fuzhou 350007, Peoples R China.. The CAS is 67-51-6. Through research, I have a further understanding and discovery of 3,5-Dimethyl-1H-pyrazole.
An intermolecular hydroalkylative dearomatization of naphthalenes with commercially available alpha-amino acids is achieved via visible-light photoredox catalysis. With an organic photocatalyst, a series of multi-substituted 1,2-dihydronaphthalenes are obtained in good-to-excellent yields. Intriguingly, by tuning the substituents at the C2 position of naphthalenes, formal dearomative [3+2] cycloadditions occur exclusively via a hydroalkylative dearomatization-cyclization sequence. This overall redox-neutral method features mild reaction conditions, good tolerance of functionalities, and operational simplicity. Diverse downstream elaborations of the products are demonstrated. Preliminary mechanistic studies suggest the involvement of a radical-radical coupling pathway.
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Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics