1. Conformations of some αβ-unsaturated carbonyl compounds. Part II. Infrared and Raman spectra of methyl and ethyl acrylates and trans-crotonates A. J. Bowles,W. O. George,D. B. Cunliffe-Jones J. Chem. Soc. B 1970 1070
2. Conformations of some αβ-unsaturated carbonyl compounds. Part II. Infrared and Raman spectra of methyl and ethyl acrylates and trans-crotonates A. J. Bowles,W. O. George,D. B. Cunliffe-Jones J. Chem. Soc. B 1970 1070
3. Conformations of some αβ-unsaturated carbonyl compounds. Part III. Infrared solution spectra of methyl, [2H3]methyl, ethyl, and [2H5]ethyl acrylates and trans-crotonates W. O. George,D. V. Hassid,W. F. Maddams J. Chem. Soc. Perkin Trans. 2 1972 400
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![1-[3-(4-oxocyclohexa-2,5-dien-1-ylidene)-4H-pyrido[2,3-b]pyrazin-6-yl]-3-prop-2-enylthiourea](http://hg.y866.cn/compound/lib/scimg/cas/150/800394-83-6.png "1-[3-(4-oxocyclohexa-2,5-dien-1-ylidene)-4H-pyrido[2,3-b]pyrazin-6-yl]-3-prop-2-enylthiourea")
