Stereoselective C-N Ring Construction
Ryoichi Kuwano of Kyushu University showed (J. Am. 1-Hydroxyhept-6-yn-3-one structure Chem. Formula of 4-Bromo-3-fluoropicolinaldehyde Soc. 2008,130, 808. DOI: 10.1021/ja7102422)that diastereomerically and enantiomerically pure pyrrollidines such as 2 could be prepared…