The molecule of the title compound, C 18 H 15 NO 3 , adopts the keto-amine tautomeric form, with strong intramolecular N-HÁ Á ÁO hydrogen bonds classified as resonance-assisted hydrogen bonds (RAHBs). In the crystal structure, the molecules are stabilized by C-HÁ Á ÁO, C-HÁ Á Á andinteractions, form
3-[1-(Ethylamino)ethylidene]-6-methyl-3H-pyran-2,4-dione
✍ Scribed by Xiao, G. ;van der Helm, D. ;Hider, R. C. ;Dobbin, P. S.
- Book ID
- 114509875
- Publisher
- International Union of Crystallography
- Year
- 1993
- Tongue
- English
- Weight
- 320 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0108-2701
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The title compound, C 9 H 12 N 2 O 3 , was synthesized by the reaction in ethanol of ethane-1,2-diamine and 3-[bis(methylthio)methylene]-6-methyl-3,4,5,6-tetrahydro-2H-pyran-2,4dione. Two intramolecular N-HÁ Á ÁO hydrogen bonds induce a high degree of planarity.
## Abstract An efficient synthesis of 3‐bromoacetyl‐4‐hydroxy‐6‐methyl‐2__H__‐pyran‐2‐one by bromination of dehydroacetic acid in glacial acetic acid is described. Novel 4‐hydroxy‐6‐methyl‐3‐(2‐substituted‐thiazol‐4‐yl)‐2__H__‐pyran‐2‐ones have been prepared from the reaction of 3‐bromoacetyl‐4‐hyd
## Abstract Die Metallchelate **3** und **4** mit Cu^2+^, Ni^2+^, Mg^2+^ und Co^2+^ wurden aus den 3‐Aroyl‐6‐aryl‐4‐hydroxy‐2‐pyronen **1** (Ar = Phenyl, __p__‐Tolyl, Biphenylyl oder Thienyl) und direkt eingesetzten oder in situ gebildeten Metallacetaten dargestellt.