Markushyna, Yevheniia published the artcileChromoselective Synthesis of Sulfonyl Chlorides and Sulfonamides with Potassium Poly(heptazine imide) Photocatalyst, Quality Control of 939-99-1, the publication is Angewandte Chemie, International Edition (2021), 60(37), 20543-20550, database is CAplus and MEDLINE.
Among external stimuli used to promote a chem. reaction, photocatalysis possesses a unique one-light. Photons are traceless reagents that provide an exclusive opportunity to alter chemoselectivity of the photocatalytic reaction varying the color of incident light. This strategy may be implemented by using a sensitizer capable to activate a specific reaction pathway depending on the excitation light. Herein, we use potassium poly(heptazine imide) (K-PHI), a type of carbon nitride, to generate selectively three different products from S-arylthioacetates simply varying the excitation light and otherwise identical conditions. Namely, arylchlorides are produced under UV/purple, sulfonyl chlorides with blue/white, and diaryl disulfides at green to red light (e.g., S-Ph thioacetate → benzenesulfonyl chloride (93%) under blue light irradiation using HCl in water/MeCN and O2 as electron acceptor). A combination of the neg. charged polyanion, highly pos. potential of the valence band, presence of intraband states, ability to sensitize singlet oxygen, and multi-electron transfer is shown to enable this chromoselective conversion of thioacetates.
Angewandte Chemie, International Edition published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C8H6ClF3, Quality Control of 939-99-1.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics