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- Somogyi, L., et al.
(författare)
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Synthesis and stereostructure of some spiro[morphinan‐6,2′(3′H)‐[1,3,4]oxa(thia)diazolines]
- 1995
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Ingår i: Liebigs Annalen. - : Wiley. - 0947-3440 .- 1099-0690. ; 1995:7, s. 1393-1395
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Tidskriftsartikel (refereegranskat)abstract
- Treatment of dihydrocodeinone (thio)semicarbazones 1a–d with Ac2O/ZnCl2 afforded (6S)‐spiro[morphinan‐6,2′(3′H)‐[1,3,4]oxadiazolines] 2a, b and (6R)‐spiro[morphinan‐6,2′‐(3′H)‐[1,3,4]thiadiazolines] 3a, b, respectively. The structure of the products including the configuration of the spiro carbons was determined by 1H‐ and 13C‐NMR measurements.
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