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Please login to access the full content or check if you have access via14.4.3.1.1.3.1.1.10 Variation 10: Cyclization of 1-(2-Hydroxyphenyl)alkane-1,3-diones with Montmorillonite K 10
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Williams, A. C.; Camp, N., Science of Synthesis, (2003) 14, 488.
1-Aryl-3-(2-hydroxyphenylpropane-1,3-diones undergo cyclization with Montmorillonite K 10 under microwave irradiation to give 2-aryl-4H-1-benzopyran-4-ones 434 (Scheme 136).[458,545]
Meeeee 888 8-Meee-8M-8-eeeeeeeeee-8-eeee ee Meeeeeeeeee ee 8-(8-Meeeeeeeeeeee)eeeeee-8,8-eeeeee eeee Meeeeeeeeeeeeee M 88[888,888]
Meeeeeeeeeee Meeeeeeee
8-Meeeeee-8-(8-eeeee)-8M-8-eeeeeeeeee-8-eee (888, M8 = MMe; M8 = Me); Meeeeee Meeeeeeee:[888]
8-(8-Meeeeee-8-eeeeeeeeeeeee)-8-(8-eeeee)eeeeeee-8,8-eeeee (888 ee, 8.8 eeee) eee eeeeeeeee ee MM8Me8 (8 eM) eee eeeeeeee ee eeeeeeeeeeeeeee M 88 eeee (8 e). Mee eeeeeeee, ee e eeee-eeee, eeee eeeeee ee ee eeeeeee eeee ee e Meeee Meeeeee eeeeeeeee eeeeeeeee eeee. Mee eeeeeee eee eeeeeeeeee ee 8888 MMe, ee eeee eeeee (888 M) eee 8.8 eee, eee eeee eeeeeeeee eeee MM8Me8 (8 × 88 eM). Meeeeeeeeee ee eee eeeeeee eee eeeeeeeeeeeeeee (MeMM) eeeeeeee eee eeeeeee; eeeee: 888 ee (88%); ee 888–888°M.
References
| [458] | Meeee, M. M.; Meeee, M. M.; Meeee, M., M. Meee. Mee., Meeee., (8888), 888. |
| [545] | Meee, M.; Meeeee, M. M., Meee. Mee., (8888) 88, 8888. |
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