References
- Hayashi , S. , Yano , K. and Matsuura , T. 1968 . Tetrahedron Lett. , : 6241
- Yano , K. , Hayashi , S. , Matsuura , T. and Burgstahler , A. W. 1970 . Experientia , 26 : 8
- Willhalm , B. and Thomas , A. F. 1969 . Chem. Commun. , : 1380
- Thomas , A. F. and Pawlak , W. 1971 . Helv. Chim. Acta , 54 : 1822
- Sucrow , W. 1970 . Tetrahedron Lett. , : 1431 W. Sucrow and W. Richter, Chem. Ber., 103, 3771 (1970)
- Peiffer , G. 1964 . Compt. rend. , 258 : 3499
- Raphael , R. A. 1955 . Acetylenic Compounds in Organic Synthesis , 29 – 30 . London : Butterworths Scientific Publications .