Direct low temperature proton and fluorine-19 nuclear magnetic resonance study of boron trifluoride complexes with 4-chlolesten-3-one, 1(5.beta.)-androstene-3,17-dione, 5.beta.-androstane-3,17-dione and obacunone
1973 ◽
Vol 38
(16)
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pp. 2904-2908
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1983 ◽
pp. 475
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1975 ◽
Vol 40
(9)
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pp. 1244-1248
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1987 ◽
pp. 2083-2085
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2000 ◽
Vol 69
(5)
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pp. 1298-1301
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1977 ◽
Vol 42
(15)
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pp. 2549-2551
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