87067-06-9Relevant articles and documents
A Catalyzed Aerobic Intramolecular C-O Bond Formation: Facile Access to Ring-Fused Dihydrobenzoxazine Derivatives
Shang, Xiao-Jie,Liu, Zhong-Quan
, p. 4693 - 4697 (2017)
A catalyst comprising of catalytic cobalt(II) acetate/copper(II) acetate/ dl -tyrosine with oxygen as the oxidant allows aerobic intramolecular C-O bond construction in [2-(pyrrolidin-1-yl)phenyl]methanol by free-radical promoted intramolecular selective functionalization of an (sp 3)C-H bond by the alcohol, thus providing an environmentally friendly approach to 5 H -benzo[ d ]pyrrolo[2,1- b ][1,3]oxazine derivatives.
N-Alkylation-Initiated Redox-Neutral [5 + 2] Annulation of 3-Alkylindoles with o-Aminobenzaldehydes: Access to Indole-1,2-Fused 1,4-Benzodiazepines
Wang, Shuai,Shen, Yao-Bin,Li, Long-Fei,Qiu, Bin,Yu, Liping,Liu, Qing,Xiao, Jian
supporting information, p. 8904 - 8908 (2019/11/19)
Described herein is an unprecedented N-Alkylation-initiated redox-neutral [5 + 2] annulation of 3-Alkylindoles with o-Aminobenzaldehydes via a cascade N-Alkylation/dehydration/[1,5]-hydride transfer/Friedel-Crafts alkylation sequence. A series of indole-1,2-fused 1,4-benzodiazepines are facilely constructed in moderate to good yields in one step. This protocol features excellent regioselectivity, metal-free conditions, high step economy, and wide substrate scope.
Intramolecular redox-triggered C-H functionalization
Jurberg, Igor D.,Peng, Bo,Woestefeld, Eckhard,Wasserloos, Maximilian,Maulide, Nuno
, p. 1950 - 1953 (2012/04/04)
Sacrifice for the team: A one-pot method achieves remote functionalization at the α-position of an amine moiety through the sacrificial reduction of a neighboring group. The process takes advantage of an intramolecular redox reaction, thereby avoiding the need for any external oxidants. This method was applied to a concise five-step total synthesis of indolizidine 167B.