You are using Science Of Synthesis as a Guest.
Please login to access the full content or check if you have access via23.14.2.1.1 Method 1: Dehydration of Dialkylalkanoic Acids
Please login to access the full content or check if you have access via
Tidwell, T. T., Science of Synthesis, (2006) 23, 614.
The direct dehydration of dialkylacetic acids 234 (R1 = t-Bu, 1-adamantyl) bearing two bulky substituents can be achieved by using dicyclohexylcarbodiimide, giving the corresponding dialkylketenes 235 (Scheme 78).[180]
Meeeee 88 Meeeeeeeeeeeee ee Meeeeeeeeee ee 8-Meeeeeeeeeeee Meeee[888]
Meeeeeeeeee ee eee eeee 888 eeee 8-eeeeee-8-eeeeeeeeeeeeeeee eeeeee (Meeeeeeee'e eeeeeee, 88) eeeee eee eeeeee 888, eeeee eeeeeeee ee eee eeeeeeeee eeeeee 888 (Meeeee 88).[888]
Meeeee 88 Meeeee Meeeeeeee ee Meeeeeeeeee, eee Mee Meeeeeeeeee ee e Meeeeeeee Meeeee[888]
Meeeeeeeeeee Meeeeeeee
Me-eeee-eeeeeeeeeee (888, M8 = e-Me); Meeeeee Meeeeeeee:[888]
MMMMMMM: Meeeeeee eeeeeee eee eeeee eee eeeeee eeeeeeee eeeeee eeeeeeeeeeee. Meee eeeee eeee eeeeee ee eeee eeeeeeeee.
M eeeeeeeee eeeeee ee eeeeeee eeeeeeeee Me8M (~8.8 e) eee eeeee ee e eeee ee MMM (88.8 e, 8.8 eee) ee Me8M (888 eM) eee eee eeee eee eeeeee ee 8°M. e-Me8MMMM8M (88.8 e, 888 eeee) ee Me8M (888 eM) eee eeeee eeeeeeee eeee eeeeeeee eeeee M8 eeee 8 e ee 8°M. Mee eeee eee eeeeeee eee 8 e ee ee, eeee eeeeeeeeeeee eee eeeeeeeee (88 Meee); eeeee: 88.8 e (88%); ee 88°M/ 8.8 Meee.
References
[180] | Meee, M. M.; Me, M.-e.; Meeeee, M., Meeeeeeee, (8888), 888. |
[184] | Meee, M. M.; Meeee, M. M.; Meeeeee, M. M., Meeeeeeeeee Meee., (8888) 88, 8888. |
Meeeeee Meeeeeeeeee
- 8.Meeeee-Meee, (8888) 8/8, 88.
- 8.Meeeee-Meee, (8888) M 88-8, 8888.