176983-04-3Relevant articles and documents
Tandem Pummerer-Diels-Alder reaction sequence. A novel cascade process for the preparation of 1-arylnaphthalene lignans
Padwa, Albert,Cochran, John E.,Kappe, C. Oliver
, p. 3706 - 3714 (1996)
The α-thiocarbocation generated from the Pummerer reaction of an o-benzoyl-substituted sulfoxide is intercepted by the adjacent keto group to produce an α-thio isobenzofuran as a transient intermediate which undergoes a subsequent Diels-Alder cycloadditio