1355017-69-4Relevant academic research and scientific papers
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 (2021/03/29)
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%)
Triflic Acid Catalyzed Formal [3 + 2] Cycloaddition of Donor-Acceptor Oxiranes and Nitriles: A Facile Access to 3-Oxazolines
Zhou, Hai,Zeng, Xiaofei,Ding, Liyuan,Xie, Yan,Zhong, Guofu
, p. 2385 - 2387 (2015/05/27)
A TfOH-catalyzed chemoselective [3 + 2] cycloaddition of donor-acceptor oxiranes and nitriles is described. This reaction provides an efficient and practical method for the preparation of useful 3-oxazolines in good to excellent yields (up to 99%).
Synthesis of 3-Oxazolines via SnCl4-Promoted Formal [3+2] Cycloaddition of Donor-Acceptor Oxiranes and Nitriles
Zhou, Hai,Zeng, Xiaofei,Xie, Yan,Zhong, Guofu
, p. 1693 - 1696 (2015/07/20)
A novel SnCl4-promoted formal [3+2] cycloaddition of donor-acceptor oxiranes and nitriles via chemoselective C-C bond breakage was developed. This reaction provides an efficient and practical method for the preparation of 3-oxazolines in good yields (up to 89%).
C-O versus C-C bond cleavage: Selectivity control in Lewis acid catalyzed chemodivergent cycloadditions of aryl oxiranyldicarboxylates with aldehydes, and theoretical rationalizations of reaction pathways
Chen, Zuliang,Tian, Ziqi,Zhang, Jieming,Ma, Jing,Zhang, Junliang
, p. 8591 - 8595 (2012/08/13)
A clean break: Lewis acid catalyzed chemodivergent [3+2] cycloadditions of aryl oxiranyldicarboxylates with aldehydes are revealed, in which the C-C or C-O bond cleavage of oxiranes can be controlled by the use of Ni(ClO 4)2 or Sn(OTf)2 catalysts (see scheme). Possible reaction pathways for these transformations are demonstrated by theoretical calculations. Copyright
