Revisiting the 1,3-azadiene-succinic anhydride annulation reaction for the stereocontrolled synthesis of allylic 2-oxopyrrolidines bearing up to four contiguous stereocenters
作者:Timothy K. Beng、Jasleen Kaur、Ifeyinwa S. Anosike、Benjamin Rentfro、Shae Newgard
DOI:10.1039/d4ra03156c
日期:——
Polysubstituted 2-oxopyrrolidines bearing at least two contiguous stereocenters constitute the core of several pharmaceuticals, including clausenamide (antidementia). Here, we describe a flexible annulation strategy, which unites succinic anhydride and 1,3-azadienes to produce allylic 2-oxopyrrolidines bearing contiguous stereocenters. The approach is chemoselective, efficient, modular, scalable, and
Nucleophilic Reactivity of the Carbon-Carbon Double Bond. I. Solvolytic Ring Closure of 2-(Δ<sup>3</sup>-Cyclopentenyl)ethyl and 1-(Δ<sup>3</sup>-Cyclopentenyl)-2-propyl Arenesulfonates
作者:Paul D. Bartlett、Shelton Bank、Robert J. Crawford、George H. Schmid
DOI:10.1021/ja01084a025
日期:1965.3
Nucleophilic Reactivity of the Carbon-Carbon Double Bond. IV.<sup>1</sup> The Effect of Chain Elongation. 3-(Δ<sup>3</sup>-Cyclopentenyl- and 3,4-dimethyl-Δ<sup>3</sup>-cyclopentenyl)-propyl p-Nitrobenzenesulfonates
作者:Paul D. Bartlett、Walter S. Trahanovsky、Donald A. Bolon、George H. Schmid