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Revision of the configuration of the C-4 hydroxymethylene group in buxus alkaloids by N NMR spectroscopy

✍ Scribed by M. Sangare; F. Khuong-Huu; D. Herlem; A. Milliet; B. Septe; G. Berenger; G. Lukacs


Book ID
104215161
Publisher
Elsevier Science
Year
1975
Tongue
French
Weight
231 KB
Volume
16
Category
Article
ISSN
0040-4039

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## REFERENCE DATA of the alcohol into the acetate (7) and ketone (ll), respectively. The C-29 signal in 2, however, is virtually unaffected by acetylation (6), while it is appreciably shielded (3.9 ppm) on conversion to ketone 10. Similar shift behaviour was also observed for the C-29 and C-30 sig