Complexation of hydroxylated ent-kaurane
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Francisco Fernández-Gadea; María L. Jimeno; Benjamín Rodríguez
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Article
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1984
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John Wiley and Sons
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English
⚖ 552 KB
The 13C NMR spectra of some hydmxylated e n t -k a m e diterpenoids were measured in CDC13-Py-4 (1 : 1) solutiou and also after addition of boric acid. Complexation of ent-3P,l8-, ent-7a;15&, ent-7a,l5cu-, ent-l5B,16B-and ent-16B,17-dihydroq derivatives with boric acid produced considerable chemical