A one-pot construction of acridones by rhodium catalyzed reaction of N -phenyl-2-(1-sulfonyl-1 H -1,2,3-triazol-4-yl)aniline
摘要:
A one-pot synthesis of N-alkyl acridone via rhodium catalyzed decomposition of N-phenyl-2-(1-sulfonyl-1H-1,2,3-triazol-4-yl)aniline and subsequent oxidative C-C bond fragmentation has been developed. 14 examples are presented and the yields range from 30% to 80%. (C) 2015 Elsevier Ltd. All rights reserved.
A New Route to Indolines by the Cu-Catalyzed Cyclization Reaction of 2-Ethynylanilines with Sulfonyl Azides
作者:Eun Jeong Yoo、Sukbok Chang
DOI:10.1021/ol800049b
日期:2008.3.1
It is revealed that 2-sulfonyliminoindolines can be efficiently synthesized by the Cu-catalyzed cyclization reaction of N-alkyl- or aryl-substituted 2-ethynylanilines with sulfonyl azides. This newroute to the indoline derivatives is characterized by mild reaction conditions, facile introduction of functional groups at the 2-position of the indoline ring, and the wide substrate scope. Selective transformation
Benzoyl urea derivatives that are alpha helical peptides mimetics that mimic BH3-only proteins, compositions containing them, their conjugation to cell-targeting-moieties, and their use in the regulation of cell death are disclosed. The benzoyl urea derivatives are capable of binding to and neutralizing pro-survival Bcl-2 proteins. Use of benzoyl urea derivatives in the treatment and/or prophylaxis of diseases or conditions associated with deregulation of cell death are also described.
Synthesis of spiro-4<i>H</i>-pyrazole-oxindoles and fused 1<i>H</i>-pyrazoles <i>via</i> divergent, thermally induced tandem cyclization/migration of alkyne-tethered diazo compounds
A thermally induced, substrate-dependent reaction of alkynyl diazocompounds has been developed. This transformation produces spiro-4H-pyrazole-oxindoles and fused 1H-pyrazoles in good to high yields from the corresponding alpha-cyano and alpha-sulfonyl diazocompounds. The salient features of this reaction include excellent chemoselectivity and atom-economy, mild reaction conditions, simple purification
atom-economical synthetic method for the generation of fused indoles, using a gold-catalyzedcascadecyclization of diynes, has been developed. The reaction gave various fused indoles, such as aryl-annulated[a]carbazoles, dihydrobenzo[g]indoles, and azepino- or oxepinoindole derivatives in good to excellent yields, through an intramolecular cascade 5-endo-dig hydroamination followed by a 6- or 7-endo-dig cycloisomerization
已经开发了一种直接,简洁且原子经济的合成方法,该方法使用金催化的二炔级联环化生成稠合的吲哚。该反应通过分子内级联5-内-挖-加氢胺化,然后进行6-氨基苯甲酸酯化,得到了各种稠合的吲哚,例如芳基环化的[ α ]咔唑,二氢苯并[ g ]吲哚和氮杂环庚烷-或氧代庚并吲哚衍生物,收率良好。或7-内挖式环异构化,而不会产生理论副产物。所得的三支吲哚对T表现出有效的抗真菌活性。癣菌和Ť。风疹,说明了所描述的级联反应在药物发现中的实际应用。
An efficient approach to 1,2,3-trisubstituted indole via rhodium catalyzed carbene C<sub>sp3</sub>–H bond insertion