Efficient Syntheses of (±)-Cherylline and Latifine Dimethyl Ether
摘要:
A concise route for the syntheses of (+/-)-cherylline and latifine dimethyl ether is reported. The key steps involved are Michael addition of veratrole with p-methoxy nitrostyrene (for cherylline), anisole with 2,3-dimethoxy nitrostyrene (for latifine), and reduction of nitro intermediate, followed by Pictet-Spengler cyclization.
Pd–NHC Catalyzed Conjugate Addition versus the Mizoroki–Heck Reaction
作者:Aditya L. Gottumukkala、Johannes G. de Vries、Adriaan J. Minnaard
DOI:10.1002/chem.201003643
日期:2011.3.7
Ace of base: A catalytic system is presented that, solely by choice of the base, selectively switches between conjugateaddition and the Mizoroki–Heckreaction of aryl halides with Michael acceptors (see scheme; R, R′=alkyl, aryl). For conjugateadditionreactions, this avoids the preparation and use of organometallics.
Efficient Syntheses of (±)-Cherylline and Latifine Dimethyl Ether
作者:A. Sanjeev Kumar、Samir Ghosh、R. Soundararajan、G. N. Mehta
DOI:10.1080/00397910903109859
日期:2010.5.11
A concise route for the syntheses of (+/-)-cherylline and latifine dimethyl ether is reported. The key steps involved are Michael addition of veratrole with p-methoxy nitrostyrene (for cherylline), anisole with 2,3-dimethoxy nitrostyrene (for latifine), and reduction of nitro intermediate, followed by Pictet-Spengler cyclization.