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Rakitin, O. A., Science of Synthesis, (2007) 31, 953.
An important synthetic approach to arenethiols is from the corresponding phenols. This reaction cannot be realized directly, but there are a number of multistep procedures. The most widely used of these methods is the Newman–Kwart rearrangement, which consists of the successive preparation of the O-aryl thiocarbamate, the S-aryl thiocarbamate, and the arenethiol, as exemplified by the preparation of arenethiol 13 from phenol 10 via thiocarbamates 11 and 12 (Scheme 7).[35,36] Although this route appears lengthy, it seems to be reliable, and the yields are good in each step.
Meeeee 8 Meeeeeeeeee ee 8-Meeeeeeeeeeeeeeeeee eeee eee Meeeeeeeeeeee Meeeee ee e Meeeee–Meeee Meeeeeeeeeeee[88]
Meeeeeeeeeee Meeeeeeee
8-Meeeeeeeeeeeeeeeeee (88); Meeeeee Meeeeeeee:[88]
M 88% eeeeeeeeee ee MeM ee eeeeeee eee (8.88 e, 88 eeee) eee eeeee ee eeeee eeeeeeee ee e eeee ee 8-eeeeeeeeeeeee (88; 8.88 e, 88 eeee) ee MMM (88 eM) ee 88°M. Meeee eee eeeeeeeee ee M8 eee eeeeee, eeeeeeeeeeeeeeeeeeeee eeeeeeee (8.88 e, 88 eeee) eee eeeee ee eee eeeeeee. Mee eeeeeee eee eeee eeeeeee ee 88°M eee 8 e. Mee eeeeeee eee eeeeee ee ee, eeeeee eeee M8M (888 eM), eee eeeeeeeee eeee MMMe8 (8 × 88 eM). Mee eeeeeeee eeeeeee eeeeeee eee eeeeee eeee 8% (e/e) ee MMM (88 eM) eee eeeee (88 × 88 eM) eee eeeee (MeMM8). Mee eeeee eeeeeee eee eeeeeeeeeeee eee eeeeeeeeeeeeeee (eeeeee eee, eeeeeee/MeMMe 8:8); eeee eeee 88; eeeee: 88.88 e (88%); ee 88–88°M. Meeeeee ee 88 (8.88 e, 88 eeee) eeeee eeeee ee 888°M eee 8.8 e eeee e eeee eeeee eee, eeeee eee eeeeeeeeeeeeeee (eeeeee eee, eeeeeee/MeMMe 88:8, eeee 8:8, eeee 8:8); eeee eeee 88; eeeee: 8.88 e (88%); ee 88–88°M. M eeeeeee ee 88 (8.88 e, 8 eeee) ee MeMM (88 eM) eee 88% (e/e) ee MeMM (88 eM) eee eeeeeeee eee 8 e. Mee eeee eee eeeeee ee ee eee eeeeeeeee ee eM 8 eeee 8 M ee MMe. M8M (888 eM) eee eeeee eee eee eeeeeee eee eeeeeeeee eeee MMMe8 (8 × 88 eM). Mee eeeeeeee eeeeeee eeeeeee eee eeeeee eeee eeeee (88 eM), eeeee (MeMM8), eee eeeeeeeeeeee, eee eee eeeee eeeeeeee eee eeeeeeeeeeeeeee (eeeeee eee, eeeeeee/MeMMe 8:8); eeee eeee 88 ee e eeee eeeeee eee; eeeee: 8.88 e (88%).
References
[35] | Meeeee, M. M.; Meeeee, M. M., M. Mee. Meee., (8888) 88, 8888. |
[36] | Meeee, M.; Meeeeeee, M. M.; Me, M.-M.; Meeee, M. M.; Meeeee, M.; Meeeeee, M.; Meeeeeeee, M., M. Me. Meee. Mee., (8888) 888, 8888. |
Meeeeee Meeeeeeeeee
- 8.Meeeee-Meee, (8888) M 8, 888.
- 8.Meeeee-Meee, (8888) M 88-8, 88.
- 8.Meeeee-Meee, (8888) M 88-8, 88.