References
- Schmidt , U. , Lieberknecht , A. and Wild , J. 1984 . Synthesis , : 53 – 60 .
- Ciattini , P. G. , Morera , E. and Ortar , G. 1988 . Synthesis , : 140 – 142 .
- Daumas , M. , Vo-Quang , L. , Vo-Quang , Y. and Le Goffic , F. 1989 . Tetrahedron Let. , 30 : 5121 – 5124 .
- Zoller , U. and Ben Ishai , D. 1975 . Tetrahedron , 31 : 863 – 866 .
- Alks , V. and Sufrin , J. R. 1989 . Synth. Comm. , 19 : 1479 – 1486 .
- Bernstein , Z. and Ben Ishai , D. 1977 . Tetrahedron , 33 : 881 – 883 .
- Harwood , L. M. 1985 . Aldrichimica acta , 18 : 25