作者:Kornkamon Akkarasereenon、Paratchata Batsomboon、Somsak Ruchirawat、Poonsakdi Ploypradith
DOI:10.1021/acs.joc.2c01962
日期:2022.12.2
regioselectively at the styrenyl olefin to furnish the corresponding 3-methylene-2-arylchromans in moderate to good yields (up to 88%). When R ≠ H, the reactions also proceeded with moderate stereoselectivity (up to 5:1) which was governed by the nature of the R group. The 3-methylene-2-arylchromans could serve as common intermediates for further functionalization including epoxidation, oxidative cleavage/Baeyer–Villiger
邻-醌甲基化物 ( o -QMs) 在苯乙烯基烯烃上与芳基丙二烯区域选择性地进行正式 [4 + 2]-环加成反应,以中等至良好的收率(高达 88%)提供相应的 3-亚甲基-2-芳基色满。当 R ≠ H 时,反应也会以适度的立体选择性(高达 5:1)进行,这取决于 R 基团的性质。3-亚甲基-2-芳基色满可作为进一步功能化的常用中间体,包括环氧化、氧化裂解/Baeyer-Villiger 氧化、Riley 氧化、酸催化重排和 Pd 催化的交叉偶联反应,以适度提供相应的衍生物到良好的产量。