β Scribed by Steven J. Hamrock; Robert S. Sheridan
No coin nor oath required. For personal study only.
Visible irradiation of solutions of N-methyltriazolinedione and phenanthrene results in several Diels-Alder type adducts. The mechanism for these photoadditions is discussed.
π SIMILAR VOLUMES
The addition of N-methyltriazolinedione (M) to biadamantylidene (A) gives the [2 + 2) adduct P, but clearly does not proceed in one step beause an aminoaziridinium intermediate (I) can be observed to build up during the reaction. The overall rate of P formation correlates with the amount of I that b
o-Bensoquinones can behave either as dienes or as dienophiles in Diels-Alder reactions. Usually, however, they react as dienes, particularly if they are substituted. (1) Recently we described(") the isolation of Diels-Alder adducts from cyclopentadiene and three o-bensoquinones. In each case, the qu
Only a few examples of Diels-Alder additions to monocyclic aromatic hydrocarbons are known so far. Benzyne (1) and hexaf .o-2-butyne (2) add to benzene, and the adducts of hexafluoro-2-butyne (2) at;,. dicyanoacetylene (3) to durene have been prepared. We have found that 2,3-dlcyanoblcyclo[2.2.2loct