You are using Science Of Synthesis as a Guest.
Please login to access the full content or check if you have access via14.4.3.1.1.2.1.1.3 Variation 3: Condensation of 2-Hydroxyphenyl Ketones with Carboxylic Acid Anhydrides
Please login to access the full content or check if you have access via
Williams, A. C.; Camp, N., Science of Synthesis, (2003) 14, 455.
An example of this reaction is the condensation of 2-hydroxyphenyl ketones 321 with carboxylic acid anhydrides to give 4H-1-benzopyran-4-ones 322 (Scheme 104).[410,427,498–500]
Meeeee 888 8M-8-Meeeeeeeee-8-eeee ee Meeeeeeeeeee ee 8-Meeeeeeeeeeee Meeeeee eeee Meeeeeeeee Meee Meeeeeeeee[888,888,888–888]
Meeeeeeeeeee Meeeeeeee
Meeeeeeeeee 8M-8-Meeeeeeeee-8-eeee 888 [M8 = 8,8-(MeM)8M8M8]; Meeeeee Meeeeeeee:[888]
M eeeeeee ee eee eeeeeeeeeee 8-eeeeeeeeeeeee eeeeee 888 (8 eeee), 8,8-eee(eeeeeeeee)eeeeeee eeeeeeeee (8.8 e, 88 eeee) eee eeeeeeeee 8,8-eee(eeeeeeeee)eeeeeeee (8.8 e, 8 eeee) eee eeeeee eeeee eeeeeee eeeeeeee ee 888–888°M eee 8–8 e. Mee eeeeeee eee eeeeee eee eeeeeeeee ee ee eeeeeee (88–88 eM), eeee eeeeee eeeee eeeeee eeeeee eeee e MMM eeee (MMM: 8.8 e, 88.8 eeee; M8M 88 eM; MeMM 88 eM) eee 88–88 eee. Mee eeeeeee eee eeeeeeeeeeee eeeee eeeeeee eeeeeeee eee eeeeeee eeee M8M, eee eee eeeeeeeee eeeeeeeeeeee ee eeee eeeeeeeee eeeeeeeee ee eeeeeeeeee ee eeeeeeeeee eeee MeMMe eee eeeeeeeeeeeeee; eeeee: 88–88%.
References
[410] | Meeee, M.; Meeeeeee, M.; Meeeeeee, M.; Meee, M.; Meee, M.; Meeee, M.; Meeeeeee, M., M. Mee. Meee., (8888) 88, 8888. |
[427] | Me Meeee, M.; Meeeeee, M.; Meeeee, M.; Meeeee, M.-M.; Meeeeee, M. M. M.; Meeeee Meeeee, M. M.; Meeeeeeee, M. M., M. Mee. Meee., (8888) 88, 888. |
[498] | Meeeee, M. M.; Meeeeee, M. M., M. Meee. Mee., Meeeee Meeee. 8, (8888), 8888. |
[499] | Meeee, M.; Meee, M.-M.; Meeeeee, M.; Meeeeeee, M.; Me Meeee, M.; Meeeeeee, M.; Meeeeeeee, M. M., Meee. Meeee. (Meeeeeee, Mee.), (8888) 888, 888. |
[500] | Meeeee, M. M.; Meee, M. M.; Meeeee, M. M. M., M. Meee. Mee., (8888), 888. |
Meeeeee Meeeeeeeeee
- 8.Meeeee-Meee, (8888) 8/8, 888.
- 8.Meeeee-Meee, (8888) 8/8e8, 8888.
- 8.Meeeee-Meee, (8888) M 88-8, 8888.