Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 293298-33-6, Name is 3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanehydrazide hydrochloride, molecular formula is C7H10ClN3O3. In an article, author is Wen, Hao,once mentioned of 293298-33-6, Recommanded Product: 3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanehydrazide hydrochloride.
Catalyst-Free [4+2] Cycloaddition of Ynamides with 2-Halomethyl Phenols To Construct 2-Amino-4H-Chromenes and alpha-Halo Enamides Simultaneously
We report the development of a facile protocol for the [4+2] cycloaddition of ynamides and 2-halomethyl phenols to afford the corresponding 2-amino-4H-chromenes and alpha-halo enamides under catalyst-free conditions. The reaction proceeds under mild conditions and exhibits good tolerance toward various functional groups and generates high yields. The plausible mechanism involves the formation of an active intermediate keteniminium as well as o-methylene quinone.
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Reference:
Pyrroline – Wikipedia,
,1-Pyrroline | C4H7N – PubChem