Organopromoted Direct Synthesis of 1,1-Diphenyl-3-arylindanes via Formal [3+2] Cycloadditions of Triphenylcarbenium Tetrafluoroborate with Styrenes

Nakin SurapanichPatcharin ChaisuwanChutima KuhakarnVichai ReutrakulRajabhat Rajanagarindra UniversitySuranaree University of TechnologyMahidol University2018-12-112019-03-142018-12-112019-03-142016-12-01Synlett. Vol.27, No.19 (2016), 2689-269414372096093652142-s2.0-84984850896https://repository.li.mahidol.ac.th/handle/20.500.14594/43377© Georg Thieme Verlag Stuttgart.New York-Synlett 2016. A formal [3+2] cycloaddition of triphenylcarbenium tetrafluoroborate with structurally different styrene derivatives has been developed. A combination of benzophenone and Et3N is key for promoting a formal [3+2] cycloaddition of triphenylcarbenium tetrafluoroborate with styrenes affording 1,1-diphenyl-3-arylindanes in moderate to good yields. The reaction mechanism of this transformation is also discussed.Mahidol UniversityChemistryOrganopromoted Direct Synthesis of 1,1-Diphenyl-3-arylindanes via Formal [3+2] Cycloadditions of Triphenylcarbenium Tetrafluoroborate with StyrenesReviewSCOPUS10.1055/s-0036-1588302