benzylamines has been achieved for the first time through transition-metal-catalyzed oxidative carbonylation, in which the new KR strategy offered a new approach to afford chiral isoindolinones (er up to 97 : 3) and the origin of chemoselectivity and stereoselectivity was confirmed by density functional theory (DFT) calculations.
Direct acylation of N-benzyltriflamides from the alcohol oxidation level via palladium-catalyzed C–H bond activation
作者:Jihye Park、Aejin Kim、Satyasheel Sharma、Minyoung Kim、Eonjeong Park、Yukyoung Jeon、Youngil Lee、Jong Hwan Kwak、Young Hoon Jung、In Su Kim
DOI:10.1039/c3ob40140e
日期:——
A palladium-catalyzed ortho-acylation of N-benzyltriflamides from the alcohol oxidation level via C–H bondactivation is described. These transformations have been applied to a wide range of substrates, and typically proceed with excellent levels of chemoselectivity and with high functional group tolerance.
Enantioselective Fluorination of Organic Molecules. I. Synthetic Studies of the Agents for Electrophilic, Enantioselective Fluorination of Carbanions.
作者:Yoshio TAKEUCHI、Akira SATOH、Takanori SUZUKI、Ayako KAMEDA、Masahiro DOHRIN、Toshihiro SATOH、Toru KOIZUMI、Kenneth L. KIRK
DOI:10.1248/cpb.45.1085
日期:——
develop novel methods for electrophilic and enantioselectivefluorination of active methine compounds, preliminary experiments were carried out. The N-tosyl derivative 5 obtained from D-phenylglycine was fluorinated with FClO3 or diluted F2 gas to give the N-fluoro-N-tosyl derivative 6. N-tosyl- or N-mesyl-(S)-alpha-phenethylamine 7 or 8 was subjected to FClO3 fluorination to produce the corresponding