Conversion of aldehydes to α-acetoxymethyl ketones: One-carbon homologation with (benzotriazol-1-yl)phenoxymethane
作者:Alan R. Katritzky、Zhijun Yang、Jean-Luc Moutou
DOI:10.1016/0040-4039(94)02395-r
日期:1995.2
Reaction of aldehydes with (benzotriazol-1-yl)phenoxymethyl anion afforded the corresponding addition products which, upon treatment with p-toluenesulfonic acid in acetic acid, yielded the corresponding α-acetoxymethyl ketones.
Bakers' yeast cell-free extract was found to reduce 1-acetoxy-2-alkanones to (S)-1-acetoxy-Z-alkanols in 59 - 88% yield and 95 - >99% ee by use of a catalytic amount of NADPH with glucose as a hydride source and without addition of any enzyme for the cofactor regeneration.
Reed, Kathryn L.; Gupton, John T.; McFarlane, Karyn L., Synthetic Communications, 1989, vol. 19, # 13-14, p. 2595 - 2602
作者:Reed, Kathryn L.、Gupton, John T.、McFarlane, Karyn L.
DOI:——
日期:——
REED, KATHRYN L.;GUPTON, JOHN T.;MCFARLANE, KARYN L., SYNTH. COMMUN., 19,(1989) N3-14, C. 2595-2602
作者:REED, KATHRYN L.、GUPTON, JOHN T.、MCFARLANE, KARYN L.
DOI:——
日期:——
Ishihara Kohji, Sakai Takashi, Tsuboi Sadao, Utaka Masanori, Tetrahedron Lett, 35 (1994) N 26, S 4564-4570