95249-01-7Relevant articles and documents
Visible light-promoted reductive transformations of various organic substances by using hydroxyaryl-substituted benzimidazolines and bases
Hasegawa, Eietsu,Izumiya, Norihiro,Fukuda, Takuya,Nemoto, Kazuki,Iwamoto, Hajime,Takizawa, Shin-ya,Murata, Shigeru
, p. 7805 - 7812 (2016/11/17)
Visible light promoted reduction reactions of organohalides, sulfonamides, organonitriles and epoxy ketones were performed using 1,3-dimethylbenzimidazolines possessing 2-hydroxynaphthyl or 2-hydroxyphenyl substituents (HOAr-DMBIH) as photo-reductants. Xe or Hg–Xe lamp through an appropriate glass-filter (λ>390 nm) and a household white light-emitting diode were used as light sources. In these reactions, reductive cleavages of carbon[sbnd]halogen, nitrogen[sbnd]sulfur, carbon[sbnd]carbon (nitrile) and carbon[sbnd]oxygen bonds take place. Bases exert significant effects on the progress of these reactions in a manner that depends on the nature of the substrate. Addition of 1,8-diazabicyclo[5.4.0]undec-7-ene as well as potassium t-butoxide significantly accelerates photo-reduction reactions of organohalides, sulfonamides and organonitriles while the decomposition of formed hydroxy ketones occurs in reactions of epoxy ketones. Single electron transfer from the photo-excited states of benzimidazolines (HOAr-DMBIH) or their deprotonated analogues (?OAr-DMBIH) to the substrates is proposed to initiate these reactions.
SELECTIVITY OF AROMATIC CHLORINATION REACTIONS WITHIN A REVERSED-PHASE LIQUID CHROMATOGRAPHY COLUMN
Jaeger, David A.,Clennan, Malgorzata Wegrzyn,Leyden, Donald E.,Murthy, R. S. Shreedhara
, p. 4805 - 4808 (2007/10/02)
Substrate selectivity was obtained in the chlorination of a series of n-alkyl phenyl ethers by chlorine water on a reversed-phase high performance liquid chromatography column at 25 deg C.