103850-58-4Relevant academic research and scientific papers
Radical decarboxylative alkylation of tartaric acid
Barton,Gateau-Olesker,Gero,Lacher,Tachdjian,Zard
, p. 4589 - 4602 (2007/10/02)
New derivatives of L-(+)-tartaric acid have been synthesized from the monomethyl-2,3-O-isopropylidene (R,R)-(+)-tartrate by visible light photolysis of its N-hydroxy-2-thiopyridone ester derivative in presence of activate alkenes. The carbon radical generated at the dioxolane ring adds stereoselectively to olefins to give the addition products with retention of configuration.
Decarboxylative radical addition to vinylsulphones and vinylphosphonium bromide: Some further novel transformations of geminal (pyridine-2-thiyl) phenylsulphones
Barton,Boivin,Crepon nee da Silva,Sarma,Togo,Zard
, p. 7091 - 7108 (2007/10/02)
Irradiation of O-acyl derivatives 1 of N-hydroxy-2-thiopyridone with visible light in the presence of phenyl vinyl sulphone or vinyl triphenylphosphonium bromide leads to the corresponding adducts 8 and 9 which can undergo a wide variety of further transformations.
RADICAL ADDITION TO VINYL SULPHONES AND VINYL PHOSPHONIUM SALTS
Barton, Derek H. R.,Togo, Hideo,Zard, Samir Z.
, p. 6349 - 6352 (2007/10/02)
Alkyl radicals, derived from decarboxylation of carboxylic acids, add readily to phenyl vinyl sulphone and vinyl phosphonium bromide.The adducts may be further converted into a variety of useful synthetic intermediates.
