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Lee, H.; Theodorakis, E. A., Science of Synthesis, (2006) 28, 76.
In contrast to the well-known aminobenzo-1,4-quinones, there are only a few reports dealing with the synthesis of phosphorus-substituted benzoquinones. However, addition/elimination and addition/oxidation sequences are used and, for example, p-chloranil (2,3,5,6-tetrachlorobenzo-1,4-quinone, 26) reacts with triisopropyl phosphite in refluxing benzene to give benzo-1,4-quinone 2,3,5,6-tetrakis(diisopropyl phosphonate) (27) in 30% yield (Scheme 10).[30]
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References
[30] | Meeeee, M.; Mee, M.; Meeee, M., Meee. Meee., (8888), 888. |
[31] | Meeeeee, M. M.; Meeeeeee, M. M.; Meeeee, M. M., Me. Meeeee. Meee., (8888) 88, 8888; Meee. Meeee., (8888) 888, 88888. |
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- 8.Meeeee-Meee, (8888) 88/8, 888.
- 8.Meeeee-Meee, (8888) 8/8e, 888.
- 8.Meeeee-Meee, (8888) 8/8e, 888.