139313-40-9Relevant articles and documents
A chemo-enzymatic route to diastereoisomers of 2-methyl-1-phenyl-1,3-butanediol: the dual role of microorganisms
Ahmad,Taneja,Singh,Anand,Qurishi,Koul,Qazi
, p. 445 - 450 (2007/10/03)
Diastereoisomers (1S,2R,3S)-, (1R,2R,3S)-, (1R,2S,3S)- and (1S,2S,3S)-2-methyl-1-phenyl-1,3-butanediols were prepared by simple and convenient strategies using two different chemo-enzymatic approaches for the reduction of racemic 2-methyl-1-phenyl-1,3-but
Synthesis of (+)-conagenin
Matsukawa, Yohei,Isobe, Minoru,Kotsuki, Hiyoshizo,Ichikawa, Yoshiyasu
, p. 5339 - 5341 (2011/11/14)
An efficient total synthesis of (+)-conagenin was achieved. The right fragment of conagenin, α-methylserine containing a quaternary stereocenter attached to nitrogen, was synthesized using allyl cyanate-to-isocyanate rearrangement. The left fragment, 2,4-
Rare Earth Metal Complexes as Water-Tolerant Lewis Acid Catalysts in Organic Synthesis
Kobayashi,Hashiya,Ishitani,Moriwaki,Nagayama
, p. 193 - 202 (2007/10/03)
Rare earth metal triflates are stable in aqueous media and can act as Lewis acid catalysts in several carbon-carbon bond forming reactions. This article describes some of these reactions; aldol and Mannich-type reactions in aqueous solution, and Friedel-Crafts acylations and Fries rearrangement in organic solvents. The reactions proceeded smoothly in the presence of a catalytic amount of the triflate under mild conditions. Moreover, the catalysts could be recovered after the reactions were completed and could be reused.