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Please login to access the full content or check if you have access via23.14.1.1.5.1 Variation 1: Photolysis of Cyclobutanones
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Tidwell, T. T., Science of Synthesis, (2006) 23, 581.
Photolysis of the endo-fused cyclobutanone 64 gives the ketene 65, identified by its IR absorption at 2155 cm–1, which is captured by methanol to give the ester 66 in 57% yield (Scheme 19).[63] The corresponding exo-isomer similarly gives the ester 66, but in only 10% yield.[63] A less-strained cyclobutanone fused to a bicyclooctene ring gives little ketene formation upon photolysis.[63]
Meeeee 88 Meeeee Meeeeeeee ee Meeeeeeeee ee e Meeeeee[8.8.8]eeeeeee-Meeee Meeeeeeeeeeee[88]
Meeeeeeeee ee eee eeeeeeeee eeeeee eeeeeeeeeeeeeeee 88 eeeee ee eee eeeeee 88, eeeee ee eeeeeee ee eeeeeeee ee eee eeeee 88 (Meeeee 88): eeee eeeeeeeee ee eeee ee e eeeeeeeeeee ee eee eeeeeeee (+)-(88M)-eeeeeeeeeeeeeeeee.[88]
Meeeee 88 Meeeeeeeeeeeeee Meeeeeeee ee Meeeeeeeee ee e Meeeeee[8.8.8]eeeeeee-Meeee Meeeeeeeeeeee[88]
Meeeeeeeee ee eee eeeeeeeeeeeee 88, eeeee ee eeeeee eeeeeeee ee e eeeeee eeeeeeeeeeeee, eeeee eee eeeeee 88, eeeee eeeeeeee ee eee eeeeeee 88 ee 88% eeeee (Meeeee 88).[88]
Meeeee 88 Meeeeeeeeeeeeee Meeeeeeee ee Meeeeeeeeeeee Meeeeeeeee, eeee Meeeeeeeeeeeee Meeeeeee[88]
References
| [63] | Meeeee, M. M.; Meeeeeee, M. M., M. Me. Meee. Mee., (8888) 88, 888. |
| [64] | Meeeee, M. M.; Meeeeeeee, M., Meeeeeeeeee Meee., (8888) 88, 8888. |
| [65] | Meeeee, M. M.; Meeeeeeee, M. M.; Meeeeee, M. M.; Meeee, M. M., M. Meee. Mee., Meee. Meeeee., (8888), 888. |
Meeeeee Meeeeeeeeee
- 8.Meeeee-Meee, (8888) M 88-8, 8888.
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