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Ring cleavage and ring contraction of nitro-substituted 1-methyl-2,5-diphenyl-1,4-dithiinium tetrafluoroborates

✍ Scribed by Young, Thomas E.; Oyler, Alan R.

Book ID: 127289440
Publisher: American Chemical Society
Year: 1980
Tongue: English
Weight: 539 KB
Volume: 45
Category: Article
ISSN: 0022-3263
DOI: 10.1021/jo01294a003

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## Abstract magnified image Oxidation of metronidazole (**4**) with sodium dichromate yielded the corresponding 2‐(2‐methyl‐5‐nitro‐1__H__‐imidazol‐1‐yl)acetic acid (**5**) which was esterified with 1‐butanol to give butyl 2‐(2‐methyl‐5‐nitro‐1__H__‐imidazol‐1‐yl)acetate (**8**). Reaction of the l