6590-65-4Relevant academic research and scientific papers
Phosphine-catalyzed [4+1] annulation of 2-tosylaminochalcones with allenoates: Synthesis of trans-2,3-disubstitued indolines
Gao, Zhenzhen,Wang, Chang,Yuan, Chunhao,Zhou, Leijie,Xiao, Yumei,Guo, Hongchao
, p. 12653 - 12656 (2015)
Phosphine-catalyzed [4+1] annulation of 2-tosylaminochalcones with allenoates has been achieved, giving trans-2,3-disubstitued indolines as major diastereoisomers in moderate to good yields.
Ruthenium-catalyzed C-H amination of aroylsilanes
He, Rui,Jin, Shuqi,Liao, Yilei,Lu, Xiunan,Shen, Wenzhou,Sun, Yaling,Yu, Feifei,Zhang, Jian,Zhong, Guofu,Zhong, Liangjun
, p. 6313 - 6321 (2021)
Acylsilane represents a valuable synthon in synthetic chemistry. We report on ruthenium(ii)-catalyzedortho-C-H amination of aroylsilanes to provide facile access to synthetically useful imidobenzoylsilanes and tosyl-amidobenzoylsilanes. The protocols, with broad substrate scope and excellent functional group tolerance, are enabled with the weak chelation-assistance of acylsilaneviaC-H cyclometallation.
A new route to 1,2,3-triazole fused benzooxazepine and benzodiazepine analogues through metal-free intramolecular azide-olefin oxidative cycloaddition
Gangaprasad,Paul Raj,Karthikeyan,Rengasamy,Kesavan,Vajjiravel,Elangovan
, (2019)
A collection of 1,2,3-triazole fused benzooxazepine and benzodiazepine analogues was prepared by one pot azide substitution and intramolecular azide-olefin oxidative cycloaddition sequence under metal-free conditions.
One-Pot Relay Gold(I) and Br?nsted Acid Catalysis: Cyclopenta[b]annulation of Indoles via Hydroamination/Nazarov-Type Cyclization Cascade of Enynols
Dhiman, Seema,Ramasastry
, p. 5116 - 5119 (2015)
An expedient relay gold(I) and Br?nsted acid catalyzed hydroamination/Nazarov cyclization of 1-(2-aminophenyl)pent-4-en-2-ynols for the synthesis of various polyfunctionalized cyclopenta[b]indoles is described. The synthetic utility of this method has bee
Transition metal-free approach to azafluoranthene scaffolds by aldol condensation/[1+2+3] annulation tandem reaction of isocyanoacetates with 8-(alkynyl)-1-naphthaldehydes
Dong, Penghui,Majeed, Kashif,Wang, Lingna,Guo, Zijian,Zhou, Fengtao,Zhang, Qiuyu
supporting information, p. 4855 - 4858 (2021/05/25)
A transition metal-free aldol condensation/[1+2+3] annulation reaction of isocyanoacetates with 8-(alkynyl)-1-naphthaldehydes has been developed for the general synthesis of azafluoranthenes. This domino reaction enables successive formation of three new bonds and two rings from readily accessible starting materials in a single operation. Furthermore, this methodology can also be utilized to construct chromeno[4,3-c]pyridines and benzo[c][2,6]naphthyridines in moderate yields.
Copper-Catalyzed (4+1) Cascade Annulation of Terminal Alkynes with 2-(Tosylmethyl)anilines: Synthesis of 2,3-Disubstituted Indoles
Yan, Xu,Liu, Chun-Fang,An, Xian-Tao,Ge, Xiao-Min,Zhang, Qing,Pang, Lin-Han,Bao, Xu,Fan, Chun-An
supporting information, p. 8905 - 8909 (2021/11/24)
A novel strategy based on Cu-catalyzed (4+1) cascade annulation of terminal alkynes as one-carbon synthons with 2-(tosylmethyl)anilines has been developed for the expeditious synthesis of 2,3-disubstituted indoles, in which in situ generations of aza-o-quinone methides and alkynyl-copper(I) species are involved. This annulation provides an effective method for the assembly of synthetically and structurally interesting 2,3-disubstituted indoles.
Cascade Skeletal Rearrangement of Gold Carbene Intermediates: Synthesis of Medium-Sized Pyrimidine-Fused Benzolactones
Hu, Xiaoping,Liu, Yuanhong,Wang, Ali,Xie, Xin
supporting information, p. 3769 - 3774 (2021/07/17)
A gold-catalyzed cyclization/cascade skeletal rearrangement of o-cyanophenylalkynones with 3-amino-benzo[d]-isoxazoles has been developed, which provides an approach for synthesizing medium-sized benzolactones. Based on the experimental results, we postul
FUSED-GLUTARIMIDE CRBN LIGANDS AND USES THEREOF
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Paragraph 00404, (2021/02/12)
The present invention provides compounds, compositions thereof, and methods of using the same. The present invention also relates to compounds and methods useful for binding and modulating the activity of cereblon (CRBN), especially for the inhibition of CRBN, and the treatment of CRBN-mediated disorders.
Iron-Catalyzed Electrophilic Amination of Sodium Sulfinates with Anthranils
Liang, Baihui,Huang, Junjie,Zhu, Weidong,Li, Yawen,Jiang, Lanping,Gao, Yang,Xie, Feng,Li, Yibiao,Chen, Xiuwen,Zhu, Zhongzhi
, p. 1466 - 1473 (2021/02/09)
A practical method for the synthesis of N-(2-carbonylaryl) benzenesulfonamides via an iron-catalyzed electrophilic amination of sodium sulfinates with anthranils is described. This redox-neutral transformation has high atom efficiency and is achieved under simple and mild reaction conditions. A wide range of anthranils and sodium sulfinates were compatible in this transformation. Moreover, the synthetic potential of this methodology was further demonstrated by the synthesis of various useful N-heterocycles and derivatives.
Design and application of intramolecular vinylogous Michael reaction for the construction of 2-alkenyl indoles
Harish, Battu,Yadav, Sanjay,Suresh, Surisetti
supporting information, p. 231 - 234 (2021/01/14)
A base-mediated transformation based on a designed intramolecular vinylogous Michael addition (intra-VMA) is presented to access 3-substituted 2-alkenyl indole derivatives. The reaction represents the first example of the intra-VMA for the construction of
