Studies on 1,2,3-benzothiadiazoles. Part II. The nuclear magnetic resonance spectra of the nitro-, bromo-, and methoxy-1,2,3-benzothiadiazoles
Journal of the Chemical Society B: Physical Organic Pub Date: DOI: 10.1039/J29710000368
Abstract
The 100 MHz proton magnetic resonance spectra of the nitro-, bromo-, and methoxy-1,2,3-benzothiadiazoles were recorded and analysed as ABC systems. Additivity rules for chemical shifts and coupling constants have been applied; deviations from the observed chemical shifts are rationalised in terms of mesomeric and field effects. Syntheses of the four methoxy-1,2,3-benzothiadiazoles are described.
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Journal Name：Journal of the Chemical Society B: Physical Organic
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CAS no.: 89640-58-4
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