63194-79-6Relevant academic research and scientific papers
Organophotoredox-catalyzed intermolecular Oxa-[4+2] cycloaddition reactions
Tanaka, Kenta,Omata, Daichi,Asada, Yosuke,Hoshino, Yujiro,Honda, Kiyoshi
, p. 10669 - 10678 (2019)
An intermolecular oxa-[4+2] cycloaddition reaction promoted by a thioxanthylium photoredox catalyst under irradiation with green light has been developed. The reaction of ortho-quinone methides with styrenes smoothly affords the desired cycloadducts. Espe
An NHC-catalyzed, stereoselective α-functionalization of α,β-unsaturated carboxylic acids through: In situ activation
Wang, Zhanlin,Zhang, Huiqing,Qian, Huimin,Wang, Yuanfeng,Yu, Chenxia,Li, Tuanjie,Yao, Changsheng
, p. 4564 - 4571 (2019)
An N-heterocyclic carbene (NHC)-catalyzed α-functionalization of the in situ activated α,β-unsaturated carboxylic acids bearing γ-H was realized through formal [4 + 2] annulations with o-quinone methides, which paved a new avenue for the assembly and modi
N-Heterocyclic Carbene-Catalyzed [4 + 2] Cyclization of Saturated Carboxylic Acid with o-Quinone Methides through in Situ Activation: Enantioselective Synthesis of Dihydrocoumarins
Wang, Yuanfeng,Pan, Jian,Dong, Jingjiao,Yu, Chenxia,Li, Tuanjie,Wang, Xiang-Shan,Shen, Shide,Yao, Changsheng
, p. 1790 - 1795 (2017)
An N-heterocyclic carbene (NHC)-catalyzed formal [4 + 2] synthesis of dihydrocoumarins was realized from saturated carboxylic acids and o-quinone methides via an in situ activation strategy. This protocol results in excellent diastereoselectivity and enantioselectivity and good yields and uses readily available and inexpensive starting materials.
