Tuning the Regioselectivity of Gold-Catalyzed Internal Nitroalkyne Redox: A Cycloisomerization and [3 + 2]-Cycloaddition Cascade for the Construction of <i>spiro</i>-Pseudoindoxyl Skeleton
作者:Chepuri V. Suneel Kumar、Chepuri V. Ramana
DOI:10.1021/ol502213w
日期:2014.9.19
tricyclic core present in the spiro-pseudoindoxyl natural products has been developed. This involves two intramolecular events: the Au-catalyzed nitroalkyne redox leading to isatogen and its subsequent [3 + 2]-cycloaddition with a suitably positioned olefin. The option to modulate the size of the spiro-annulated ring, which is an important variable in this class of natural products, has been explored. Overall
BROWN, SCOTT W.;PAUSON, PETER L., J. CHEM. SOC. PT 1. PERKIN TRANS.,(1990) N, C. 1205-1209
作者:BROWN, SCOTT W.、PAUSON, PETER L.
DOI:——
日期:——
Studies of the solid-phase Pauson-Khand reaction: Selective in-situ enone reduction to 3-azabicyclo[3.3.0]octanones
作者:Daniel P. Becker、Daniel L. Flynn
DOI:10.1016/s0040-4039(00)60352-0
日期:1993.3
The Smit-Caple DSAC Pauson-Khand cyclization of a series of N-protected allylpropargylamines in the absence of oxygen gave rise to formation of the saturated azabicyclo[3.3.0]octanones in excellent yields. Standard cyclization in air gave mixtures of saturated and unsaturated ketones.