931-18-0Relevant articles and documents
1, 3-dipolar cycloaddition reactions of benzonitrile oxide to 2(1II)-pyrazinone and its n- and o-methyl derivatives
Corsaro, Antonino,Chiacchio, Ugo,Pistara, Venerando,Perrini, Giancarlo
, p. 69 - 80 (2007/10/03)
2(1H)-Pyrazinone, which is in equilibrium with 2-pyrazinol, reacts with benzonitrile oxide (BNO) affording the N-adducl with a 67% yield, while 2-methoxypyrazine gives two methoxypyrazinones (ca. 3%) and a biscycloadduct together with its degradation product, which derive from the two unisolable monocycloadducts to the C=N4 double bond. Af-Methylpyrazinone gives only the degradation product (3.4%) of the initial monocycloadduct of BNO to C=N4: double bond.
Experiments on the synthesis of pyrazine nucleosides.
Cheeseman,Freestone,Godwin,Hough
, p. 1888 - 1891 (2007/10/04)
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