Complementary α-alkylation approaches for a sterically hindered spiro[pyrazolopyranpiperidine]ketone
作者:Chris Limberakis、Jianke Li、Gayatri Balan、David A. Griffith、Daniel W. Kung、Colin Rose、Derek Vrieze
DOI:10.1016/j.tetlet.2012.03.030
日期:2012.5
Complementary alpha-alkylation methods are used to derivatize a sterically hindered spiro[pyrazolopyranpiperidine]ketone. More specifically, enolate alkylations in the presence of DMPU and aldol condensations are employed to deliver these compounds. (C) 2012 Elsevier Ltd. All rights reserved.