... Volume 25, Issue 18, 1969, Pages 4147-4151. ... Download full text in PDF. Tetrahedron Vol 25 pp 41<7 to 4151 Pergamon Pren 1969 ... 10 March 1969; Accepted for publication 19 March 1969) Abstract-The absolute configuration of ( + j-ot-methyl-p-dimethylaininopropiophenone (la ...