References
- Farid , S. , Kothe , W. and Pfundt , G. 1968 . Tetrahedron Lett. , : 4147 S. P. Pappas and N. A. Portnoy, J. Org. Chem., 33, 2200 (1968); S. P. Pappas and N. A. Portnoy, Chem. Commun., 597 (1969); W. Kothe, Tetrahedron Lett., 5201 (1969)
- Pappas , S. P. and Pappas , B. C. 1967 . Tetrahedron Lett. , : 1597 S. P. Pappas, B. C. Pappas, and N. A. Portnoy, J. Org. Chem. 34, 520 (1969); F. A. L. Anet. and D. P. Mullin, Tetrahedron Lett., 767 (1969)
- Barltrop , J. A. and Hesp , B. 1967 . J. Chem. Soc. , : 1625
- Zimmerman , H. E. and Craft , L. 1964 . Tetrahedron Lett. , : 2131 D. Bryce-Smith, G. I. Fray, and A. Gilbert, Tetrahedron Lett., 2137 (1964)
- The formation of 5, which is obtained in low yield, must involve reaction with adventitious, water
- The properties of these products and those discussed subsequently are given in the Table
- Ciar , E. 1931 . Ber. , 64 : 1676 P. Yates and P. Eaton, J. Amer, Chem. Soc 82, 4436 (1960)
- The stereochemistry of the photcadducts is assigned on the basis of the assumption that addition occurs on the less hindered side of the ethylenic double bond