Fuse, Hiromu published the artcileIdentification of a Self-Photosensitizing Hydrogen Atom Transfer Organocatalyst System, SDS of cas: 111-29-5, the publication is Journal of the American Chemical Society (2022), 144(14), 6566-6574, database is CAplus and MEDLINE.
Organocatalyst systems to promote the cleavage of stable C-H bonds, such as formyl, α-hydroxy and benzylic C-H bonds, through a hydrogen atom transfer (HAT) process without the use of exogenous photosensitizers have been developed. An electronically tuned thiophosphoric acid, 7,7′-OMe-TPA, were assembled with substrate or co-catalyst N-heteroaromatics through hydrogen bonding and π-π interactions to form electron donor-acceptor (EDA) complexes. Photoirradiation of the EDA complex induced stepwise, sequential single-electron transfer (SET) processes to generate a HAT-active thiyl radical. The first SET were from the electron-rich naphthyl group of 7,7′-OMe-TPA to the protonated N-heteroaromatics and the second proton-coupled SET (PCET) from the thiophosphoric acid moiety of 7,7′-OMe-TPA to the resulting naphthyl radical cation. Spectroscopic studies and theor. calculations characterized the stepwise SET process mediated by short-lived intermediates. This organocatalytic HAT system were applied to four different carbon-hydrogen (C-H) functionalization reactions, hydroxyalkylation and alkylation of N-heteroaromatics, acceptorless dehydrogenation of alcs. and benzylation of imines, with high functional group tolerance.
Journal of the American Chemical Society published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C5H12O2, SDS of cas: 111-29-5.
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