585526-07-4Relevant articles and documents
Diels-Alder reactions of 4-alkoxy-4-alkylcyclohexa-2,5-dienimines: Synthesis of 5-alkylindoles
Zawada, Peter V.,Banfield, Scott C.,Kerr, Michael A.
, p. 971 - 974 (2007/10/03)
N-arylsulfonyl 4-alkoxy-4-alkylcyclohexadienimines undergo thermal Diels-Alder reactions with 1,3-butadienes to yield the expected cycloadducts. The crude adducts when treated with anhydrous acid yield dihydronaphthalenes which when subjected to a series of simple transformations produce 5-alkyl indoles in good overall yields.