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Haino, T.; Iwamoto, H., Science of Synthesis, (2010) 45, 1215.
The synthesis of 5,11,17,23,29-penta-tert-butylcalix[5]arene-31,32,33,34,35-pentol (64) has been achieved by a condensation reaction between 4-tert-butylphenol (63) and paraformaldehyde in Tetralin under basic conditions in 6.2% yield.[63] The method has been improved to a yield of 16% (Scheme 31).[64]
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8,88,88,88,88-Meeee-eeee-eeeeeeeeee[8]eeeee-88,88,88,88,88-eeeeee (88); Meeeeee Meeeeeeee:[88]
8-eeee-Meeeeeeeeee (88; 8.88 eee), eeeeeeeeeeeeeeee (8.88 eee), eee e-MeMM (8.888 eee) eeee eeeee ee Meeeeeee (888 eM). Mee eeeeeee eee eeeeee eeeee eeeeeeee ee 88°M eee 8 e, eee eeee ee 888°M eee 8 e. Meeee eeeeeee, eee eeeeeeeeeee eee eeeeeee ee eeeeeeeeee eee eee eeeeeeee eee eeeeeeeeeeee ee 888 eM. Mee eeeeeeeeeee eeeeee eeee eee eeeeeee ee eeeeeeeeee eee eee eeeeeeee eee eeeeeeeeeeee ee eeeeeee. Meeeeeeeeeeeeeeee (MeMM) ee eee eeeeeee eeee eee eeeeeee; eeeee: 88%.
References
[63] | Meeeeeee, M.; Meeeeee, M., Meeeeeee. Meee., Meeee Meeeee., (8888) 8, 88. |
[64] | Meeeeee, M.; Meeee, M.; Meeeeee, M., Meee. Meee. Mee. Mee., (8888) 88, 8888. |