Gold-catalyzed annulations of <i>N</i>-aryl ynamides with benzisoxazoles to construct 6<i>H</i>-indolo[2,3-<i>b</i>]quinoline cores
作者:Meng-Han Tsai、Cheng-Yu Wang、Antony Sekar Kulandai Raj、Rai-Shung Liu
DOI:10.1039/c8cc04264k
日期:——
This work reports new annulations of N-aryl ynamides with benzisoxazoles to form 6H-indolo[2,3-b]quinoline derivatives.
这项工作报道了N-芳基炔酰胺与苯并异噁唑发生新的环合反应,形成6H-吲哚[2,3-b]喹啉衍生物。
Gold(<scp>iii</scp>)-catalyzed chemoselective annulations of anthranils with <i>N</i>-allylynamides for the synthesis of 3-azabicyclo[3.1.0]hexan-2-imines
作者:Lina Song、Xianhai Tian、Matthias Rudolph、Frank Rominger、A. Stephen K. Hashmi
DOI:10.1039/c9cc04027g
日期:——
We herein report the gold(iii)-catalyzed selective annulation of anthranils with N-allylynamides under mild conditions.
我们在此报告了在温和条件下金(III)催化的选择性闭环反应,即苯并噻唑与N-烯丙基亚胺的环化。
Gold-catalyzed (4 + 2)-annulations between α-alkyl alkenylgold carbenes and benzisoxazoles with reactive alkyl groups
作者:Bhanudas Dattatray Mokar、Prakash D. Jadhav、Y. B. Pandit、Rai-Shung Liu
DOI:10.1039/c8sc00986d
日期:——
This work reports new (4 + 2)-annulations of α-alkyl vinylgold carbenes with benzisoxazoles to afford 3,4-dihydroquinoline derivatives with high anti-stereoselectivity. The annulations are operable with carbenes in both acyclic and cyclic forms. This reaction sequence involves an initial formation of imines from α-alkylgold carbenes and benzisoxazoles, followed by a novel carbonyl-enamine reaction
Gold‐Catalyzed Aminoaromatizations of 1,2‐Bis(alkynyl)benzenes with Anthranils to Yield 1‐Amino‐2‐napthaldehyde Products
作者:Yashwant Bhaskar Pandit、Rai‐Shung Liu
DOI:10.1002/adsc.202000591
日期:2020.8.4
Gold‐catalyzedaminoaromatizations of 1,n‐diynes with anthranils afforded 1‐amino‐2‐napthaldehyde derivatives efficiently. In this reaction sequence, anthranils preferably attack at gold‐coordinated prop‐3‐yn‐1‐ols to generate α‐imino gold carbenes that enable subsequent cyclizations with the other alkynes. Chemical functionalizations of the resulting 1‐amino‐2‐napthaldehydes are presented to manifest
Reductive heterocyclizations via indium/iodine-promoted one-pot conversion of 2-nitroaryl aldehydes, ketones, and imines
作者:Rongbi Han、Kee In Son、Gil Hwan Ahn、Young Moo Jun、Byung Min Lee、Younbong Park、Byeong Hyo Kim
DOI:10.1016/j.tetlet.2006.08.027
日期:2006.10
2-Nitroaryl aldehydes, ketones, and imines were reductively cyclized to 2,1-benzisoxazoles with good yields in the presence of indium and iodine in MeOH. Under a similar condition, N-(2-nitrobenzylidene)anilines were produced mixtures of 2,1-benzisoxazoles and 3-anilino-2-phenyl-2H-indazoles.