58070-00-1Relevant articles and documents
Asymmetric catalytic [4+3] cycloaddition ofortho-quinone methides with oxiranes
Tan, Qingfa,Yu, Han,Luo, Yao,Chang, Fenzhen,Liu, Xiaohua,Zhou, Yuqiao,Feng, Xiaoming
, p. 3018 - 3021 (2021)
Catalytic enantioselective [4+3] cycloaddition reaction betweeno-quinone methides and oxiranes was achieved by using a chiralN,N′-dioxide/TbIIIcomplex as the catalyst, affording medium-sized hydrodioxepine derivatives in high yields (up to 99%)
Chemo- And regioselective ring-opening of donor-acceptor oxiranes with: N -heteroaromatics
Sang, Ji-Wei,Xie, Ming-Sheng,Wang, Man-Man,Qu, Gui-Rong,Guo, Hai-Ming
supporting information, p. 4552 - 4555 (2021/05/17)
The first ring-opening of D-A oxiranes with N-heteroaromatics in a chemoselective C-C bond cleavage manner was achieved. In the presence of 5 mol% of Y(OTf)3 as the catalyst, diverse N-heteroaromatics, including benzotriazoles, purines, substituted benzim
Highly Chemo- and Diastereoselective Dearomative [3 + 2] Cycloaddition Reactions of Benzazoles with Donor-Acceptor Oxiranes
Zhang, Shan-Shan,Wang, Dong-Chao,Xie, Ming-Sheng,Qu, Gui-Rong,Guo, Hai-Ming
supporting information, p. 8026 - 8029 (2019/01/14)
A Sc(OTf)3-catalyzed dearomative [3 + 2] cycloaddition of benzazoles with donor-acceptor oxiranes through chemoselective C-C bond cleavage of oxiranes was developed under mild conditions. This reaction provides an efficient method to construct benzazolo[3,2-c]oxazole compounds in good yields and with high diastereoselectivity. The reaction has a general substrate scope, and the donor-acceptor oxiranes with electron-donating and electron-withdrawing groups on the aromatic ring afforded the desired cycloadducts.
