7507-98-4Relevant articles and documents
A facile 2: H -chromene dimerization through an ortho -quinone methide intermediate catalyzed by a sulfonyl derived MIL-101 MOF
Du, Xin,Li, Xiujuan,Tang, Houliang,Wang, Wenyu,Ramella, Daniele,Luan, Yi
, p. 12722 - 12728 (2018/08/04)
A MIL-101-SO3H MOF was synthesized using commercially available materials. The as-synthesized MIL-101-SO3H was characterized by SEM, XRD, FTIR, BET and TGA. An efficient and diastereoselective homo-dimerization of 2H-chromenes cataly
Iron-catalyzed rearrangements and cycloaddition reactions of 2h-chromenes
Huan Sun, Yi Luan,Schaus, Scott E.
supporting information; experimental part, p. 6480 - 6483 (2012/02/01)
Iron(III) salts catalyze the tandem rearrangement/hetero-Diels-Alder reaction of 2H-chromenes to yield tetrahydrochromeno heterocycles. The process can occur as a homodimerization and cycloaddition process using electron-rich dienophiles. Deuterium labeli
Acid catalyzed stereoselective rearrangement and dimerization of flavenes: synthesis of dependensin
Deodhar, Mandar,Black, David StC,Kumar, Naresh
, p. 5227 - 5235 (2008/02/01)
Appropriately substituted flavenes undergo stereoselective rearrangement and dimerization when treated with methanolic hydrochloric acid to give benzopyranobenzopyrans. A rationale for the rearrangement is proposed. This synthetic methodology has been used for a high yield synthesis of the natural product dependensin.