modification of other 15N‐labelledpyridines. In this work, we have explored the synthesis of 15N15N‐labelledpyridines using a two‐step process via the synthesis of alkoxy‐3,4‐dihydro‐2H‐pyran as precursor exhibiting already the desired pyridine substitution pattern. As an example, we have synthesized 3,5‐dimethylpyridine‐15N (lutidine‐15N) as demonstrated by 15N‐NMR spectroscopy. That synthesis starts from
MALANGA C.; MENICAGLI R.; DELLINNOCENTI M.; LARDICCI L., TETRAHEDRON LETT., 28,(1987) N 2, 239-240
作者:MALANGA C.、 MENICAGLI R.、 DELLINNOCENTI M.、 LARDICCI L.
DOI:——
日期:——
Enantioselektive Verseifung der Diacetate von 2-Nitro-1,3-diolen mit Schweineleber-Esterase und Herstellung enantiomerenreiner Derivate von 2-Nitro-allylalkoholen (chirale Verknüpfungsreagenzien)
作者:Martin Eberle、Martin Egli、Dieter Seebach
DOI:10.1002/hlca.19880710102
日期:1988.2.3
Enantioselective Saponification of Diacetates of 2-Nitro-1,3-propanediols by Pig-Liver Esterase and Preparation of Enantiomerically Pure Derivatives of 2-Nitro-allylic Alcohols (Chiral Multiple-Coupling Reagents)
The reductive rearrangement of 2-ethoxy-5-(2-alkenyl)-2H-tetrahydropyrane systems, in the presence of AlBu13, was used as the key-step in the synthesis of Prelog-Djerassi related lactones.