References
- Strindsberg , B. and Allenmark , S. 1976 . Acta Chem. Scand. , B30 : 219 This compound has been reported by; A more convenient preparation is described above.
- Pesson , M. Belg. P. . 637049 . 1963 . Chem. Abstracts 62, 10412(1965).
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