Butadiene Diels-Alder

In the absence of Aldol condensation, the only heavies forming reactions involve a butadiene Diels-Alder reaction to form 4-vinylcyclohexene and subsequent oxidative carbonylation. [Pg.85]

Fig. 14a and b. Mixing of orbitals in the butadiene+butadiene Diels-Alder reaction... [Pg.17]

Electrophilic Silylation Reagent. l,2-Bis(chlorodimethyl-silyl)ethane is not only an effective amine silylating reagent, but can also be employed in reactions with other anions. For example, when treated with the silver sulfonate salt as in eq 11, the nonafluorobutanesulfonic acid silyl ester (27), an extremely powerful silylating reagent, results.Carbanions are also effectively trapped by (1) A series of rigid butadiene Diels-Alder precursors such as (28) have been prepared in this fashion as outlined in eq 12.12... [Pg.50]