A phosphine-catalyzed [3 + 2] annulation reaction of modified allylic compounds and N-tosylimines.
A phosphine-catalyzed annulation of modified allylic ylides with various aromatic imines to form 3-pyrrolines was developed. The presence of a substituent in the allylic compound is crucial for this reaction. Without the substituent, (E)-dienylimines will be produced via the dimerization of the allylic compounds.
Zheng
Suqing
S
State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai, 200032, China.
Lu
Xiyan
X