1781301-15-2Relevant academic research and scientific papers
Synthesis of α-Formylated N-Heterocycles and Their 1,1-Diacetates from Inactivated Cyclic Amines Involving an Oxidative Ring Contraction
Wang, Fang,He, Yan,Tian, Miaomiao,Zhang, Xinying,Fan, Xuesen
, p. 864 - 867 (2018)
A novel synthesis of pyrrolidine-2-carbaldehydes or tetrahydropyridine-2-carbaldehydes from the cascade reactions of N-arylpiperidines or N-arylazepanes is presented. Mechanistically, the formation of the title compounds involves an unprecedented oxidative ring contraction of inactivated cyclic amines via Cu(OAc)2/KI/O2-promoted oxidative cleavage and reformation of the C-N bond. Interestingly, when PhI(OAc)2 was used in place of KI, 1,1-diacetates of the corresponding aldehydes were directly obtained with good efficiency. To the best of our knowledge, this is the first example of regioselective C(sp3)-H bond functionalization and C(sp3)-N bond activation of saturated cyclic amines using copper salt and oxygen.
Iodine-Catalyzed Oxidative Rearrangement of Amines to α-Amino Acetals and α-Amino Aldehydes
Zhou, Min-Jie,Zhu, Shou-Fei,Zhou, Qi-Lin
supporting information, (2019/02/19)
A protocol for iodine-catalyzed oxidative rearrangement of tertiary and secondary amines has been developed. This metal-free protocol provides an atom-economical, efficient access to synthetically useful α-amino acid derivatives from readily available acyclic and cyclic tertiary or secondary amines. (Figure presented.).
Iodine-catalyzed oxidative rearrangement of amines to a-amino acetals and a-amino aldehydes
Zhou, Min-Jie,Zhu, Shou-Fei,Zhou, Qi-Lin
supporting information, p. 1289 - 1294 (2019/10/28)
A protocol for iodine-catalyzed oxidative rearrangement of tertiary and secondary amines has been developed. This metal-free protocol provides an atom-economical, efficient access to synthetically useful a-amino acid derivatives from readily available acyclic and cyclic tertiary or secondary amines.
