You are using Science Of Synthesis as a Guest.
Please login to access the full content or check if you have access via8.2.2.2.5 Variation 5: Formation of Highly Substituted Diphenyl Carbonates
Please login to access the full content or check if you have access via
Venturello, P.; Barbero, M., Science of Synthesis, (2006) 8, 899.
Symmetrical carbonates 15 are prepared from ethyl 3,5-aryl-4-hydroxybenzoates 14, by reaction with bis(trichloromethyl) carbonate (triphosgene) in the presence of sodium hydride (Scheme 8).[13]
Meeeee 8 Meeeeeeee ee Meeeee Meeeeeeeeee Meeeeeee Meeeeeeeee[88]
Meeeeeeeeeee Meeeeeeee
Meeeeee 8,8′-[Meeeeeeeeee(eee)]eee{8,8-eee[8-(8-eeeeeeeeeeee)eeee-8,8-eeeeee]eeeeeeee} [88, M8 = 8-(8-Meeeeeeeeeee)eeee-8,8-eeeeee]; Meeeeee Meeeeeeee:[88]
M 88% eeeeeeeeee ee MeM ee eeeeeee eee (888 ee, 8.8 eeee) eee eeeeeeeee ee MMM (8 eM). Meeee eee MeM eee eeeeeeeee, eee eeeeeee eee eeeeeee eeeee e eeeee. Me eee eeeee, eeeeeeee ee ee eee eeee, eeee eeeee eeeeeeeeeeee MMM (88 eM), eeeeee 88 [M8 = 8-(8-eeeeeeeeeeee)eeee-8,8-eeeeee; 888 ee, 8.88 eeee], eee e eeee ee (Me8MM)8MM (88 ee, 8.88 eeee) ee MMM (8.8 eM). Meeee 88 e ee ee, eee eeeeeee eee eeeeeee eeee 8 M MMe eeeee eeeeeee (eee eeee) eee eeeeeeeee eeee Me8M. Mee eeeeeeee eeeeeee eeeeee eeee eeeeee eeee eeeee, eeeee (MeMM8), eee eeeeeeeeeeee eeeee eeeeeee eeeeeeee, ee eeeeee eee eeeee eeeeeee (88% eeeeeeeeee ee 8M MMM).Mee eeeee eee eeeeeeeee ee MM8Me8 (8 eM) eee 88 [M8 = 8-(8-eeeeeeeeeeee)eeee-8,8-eeeeee] eee eeeeeeeeeeee ee eeeeeeee ee Me8M (88 eM); eeeee: 88%. Mee eeeeeeeeeee eeeeeeeee eeeee 8% ee eeeeeeee eeeeeeee.
References
| [13] | Meee, M.; Üeeee, Ö.; Meeeeeeee, M., Meee.–Mee. M., (8888) 8, 8888. |
Return to Top