5234-30-0Relevant articles and documents
Short synthesis of carbazole alkaloids: Ekeberginine, murrayaquinone A, and glycozoline
Momin, Aadil A.,Urmode, Tukaram D.,Bhosale, Shrikar M.,Kusurkar, Radhika S.
, p. 1292 - 1298 (2016)
Three differently substituted, naturally occurring, biologically active carbazole derivatives (viz. ekeberginine, murrayaquinone A, and glycozoline) were synthesized in good yield using short and simple routes. The prenyl group was selectively introduced at the C4 position using a Stille coupling reaction in the synthesis of ekeberginine. Murrayaquinone A was synthesized using Raney nickel–mediated desulfurization of dithiane as a key step. Synthesis of glycozoline was achieved in two steps from 3-methyl carbazole via an intermediate 3-bromo-6-methyl carbazole.
Synthesis of Carbazoles by a Diverted Bischler-Napieralski Cascade Reaction
Faltracco, Matteo,Ortega-Rosales, Said,Janssen, Elwin,Cioc, Rǎzvan C.,Vande Velde, Christophe M. L.,Ruijter, Eelco
, p. 3100 - 3104 (2021/05/05)
An unforeseen twist in a seemingly trivial Bischler-Napieralski reaction led to the selective formation of an unexpected carbazole product. The reaction proved to be general, providing access to a range of diversely substituted carbazoles from readily available substrates. Judicious variation of substituents revealed a complex cascade mechanism comprising no less than 10 elementary steps, that could be diverted in multiple ways toward various other carbazole derivatives.
Scalable Electrochemical Transition-Metal-Free Dehydrogenative Cross-Coupling Amination Enabled Alkaloid Clausines Synthesis
Zhang, Pan,Li, Baoying,Niu, Liwei,Wang, Ling,Zhang, Guofeng,Jia, Xiaofei,Zhang, Guoying,Liu, Siyuan,Ma, Li,Gao, Wei,Qin, Dawei,Chen, Jianbin
supporting information, p. 2342 - 2347 (2020/05/05)
Reported herein is an environmentally benign electrochemical C?H bond dehydrogenative amination protocol for the construction of privileged carbazole moiety with broad generality. Preliminary mechanistic investigations implied a radical reaction pathway.
Substituent-Guided Palladium-Ene Reaction for the Synthesis of Carbazoles and Cyclopenta[ b]indoles
Yadav, Sonu,Hazra, Raju,Singh, Animesh,Ramasastry
, (2019/05/07)
An efficient palladium-catalyzed intramolecular Trost-Oppolzer type Alder-ene strategy was developed for the synthesis of carbazoles and cyclopenta[b]indoles from easily accessible(3-allyl-1H-indol-2-yl)methyl acetates. This strategy was extended for the synthesis of naphthalenes and dibenzobenzofurans as well. In addition, a short synthesis of antibacterial and antifungal natural product glycozoline and its analogues was also achieved.