References
- Shvekhgeimer , M.-G. A. 1996 . Uspekhi Khim. , 65 : 43
- Liu , C.-M. , Zhai , J.-J. , Ma , Y.-X. and Liang , Y.-M. 1998 . Synth. Commun. , 28 : 2 7 3 1.
- The (2a) and (3a) was isolated and characterized by NMR, other products of (2) and (3) were tested only by TLC.