M. Cavazza, G. Morganti, C. Veracini
1982
Citations
0
Influential Citations
2
Citations
Journal
Tetrahedron Letters
Abstract
Abstract The phosphonium salt obtained by P-methylation of 2-diphenyl-phosphinotropone with methyl iodide was found to undergo C-7 addition by piperidine, and loss of hydrogen iodide, to give an acylsphosphorane which could be isolated; the regiospecificity of piperidine addition was proven by deuterium labeling at the troponoid ring.