The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 123148-78-7, Name is 4-Chloro-5-iodo-7H-pyrrolo[2,3-d]pyrimidine, SMILES is ClC1=NC=NC2=C1C(=C[NH]2)I, in an article , author is Fang, Hui-Lin, once mentioned of 123148-78-7, Name: 4-Chloro-5-iodo-7H-pyrrolo[2,3-d]pyrimidine.
Domino beta-C-H Functionalization and [3+2] Cycloaddition for Efficient Synthesis of Diverse Spiro and Polycyclic Compounds
The acetic acid catalyzed three-component reaction of pyrrolidine, aromatic aldehydes and 4-arylidene-5-methyl-2-phenylpyrazol-3-one in refluxing toluene gave functionalized 7 ‘-(E)-benzylidenespiro[pyrazole-4,1 ‘-pyrrolizines] in good yields and with high diastereoselectivity. The similar reaction with 2-arylidene-N,N’-dimethylbarbiturates resulted in mixture of Z/E-isomers of 7 ‘- arylidenespiro[pyrimidine-5,1 ‘-pyrrolizines] in good yields. However, the three-component with N-phenylmaleimides and sequential oxidation with DDQ reaction gave 8-(E)-arylidenedihydropyrrolo[3,4-a]pyrrolizines in satisfactory yields. The reaction mechanism included sequential beta-C-H functionalization of pyrrolidine, generation of conjugated azomethine ylides, and sequential [3+2] cycloaddition with active alkenes.
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Reference:
Pyrimidine | C4H4N2 – PubChem,
,Pyrimidine – Wikipedia