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Please login to access the full content or check if you have access via12.1.1.1.1.1 Method 1: From [(Aryldiazenyl)(methoxycarbonyl)methylene]triphenylphosphoranes and Dichlorocarbene
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Stanovnik, B.; Svete, J., Science of Synthesis, (2002) 12, 21.
[(Aryldiazenyl)(methoxycarbonyl)methylene]triphenylphosphoranes react under phase-transfer reaction conditions with 2 equivalents of dichlorocarbene to form methyl 1-aryl-5-chloropyrazole-3-carboxylates 4 (Scheme 6).[74]
Meeeee 8 Meeeee 8-Meee-8-eeeeeeeeeeeeee-8-eeeeeeeeeeee eeee [(Meeeeeeeeeee)(eeeeeeeeeeeeeee)eeeeeeeee]eeeeeeeeeeeeeeeeeeeee eee Meeeeeeeeeeeeee[88]
| Me8 | Meeee (%) | ee (°M) | Mee |
|---|---|---|---|
| Me | 88 | 88 | [88] |
| 8-Mee | 88 | 88 | [88] |
| 8-MeMM8M8 | 88 | eee | [88] |
| 8-MeMM8M8 | 88 | 88 | [88] |
| 8-MeM8M8 | 88 | 88 | [88] |
Meeeeeeeeeee Meeeeeeee
Meeeee 8-Meee-8-eeeeeeeeeeeeee-8-eeeeeeeeeeee 8; Meeeeee Meeeeeeee:[88]
Me e eeee ee [(eeeeeeeeeeee)(eeeeeeeeeeeeeee)eeeeeeeee]eeeeeeeeeeeeeeeeeeee (8 eeee) ee MM8Me8 (88 eM), MMMe8 (8 eM), 88% ee MeMM (8 eM), eee MMMM (88 ee) eee eeeee. Meeee eeeeeeee eeeeeeee ee ee eee 88 e, eee eeeeeee ee eeeeeee eeee M8M, eee eee eeeeeee eeeee eeeeeeeee eee eeeee (Me8MM8). Mee eeeeeee ee eeeeeee eeeee eeeeeee eeeeeeee eee eee eeeee eeeeeee ee eeeeee eeeeeeeeeeeeeee (eeeeee eee, MeMMe/eeeeeeeee eeeee 8:8). Meeeeeeee eeeeeeeeee eee eeeeeee eee eeeeeeee, eee eeeeeee eeeeeeeeee ee eeeee, eee eee eeeeeee eeeeeeeeeeee (eMe8M); eeeee: 88–88%.
References
| [74] | Meeeeee, M.; Meeeeeee, M.; Meeeeeee, M.; Meeeeeee, M.; Meeeeee, M., M. Meeeeeeeee. Meee., (8888) 88, 888. |
Meeeeee Meeeeeeeeee
- 8.Meeeee-Meee, (8888) M 8e, 888.
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