Catalytic Asymmetric Allylic Substitution/Isomerization with Central Chirality Transposition
作者:Zhengyu Han、Han Zhuang、Luning Tang、Yu Zang、Wengang Guo、Hai Huang、Jianwei Sun
DOI:10.1021/acs.orglett.2c01559
日期:2022.6.17
asymmetric allylic substitution/isomerization process with central chirality transposition. This process takes advantage of the ambident reactivity of the 2-indole imine methide generated in situ from racemic tertiary indolylmethanols. The use of a suitable chiralphosphoricacid catalyst and an ortho-directing group allowed regioselective formation a C–C bond at the 3 position but enantiocontrolled construction
N-(2-Aminobenzylidene)-4-methylanilines—stable and cheap alternate for 2-aminobenzaldehydes: concise synthesis of 3-unsubstituted-2-aroylindoles
作者:Thavaraj Vivekanand、Thiruvalluvan Sandhya、Perumal Vinoth、Subbiah Nagarajan、C. Uma Maheswari、Vellaisamy Sridharan
DOI:10.1016/j.tetlet.2015.07.073
日期:2015.9
Synthesis of 3-unsubstituted-2-aroylindoles starting from readily available N-(2-aminobenzylidene)-4-methylanilines, cheap and stable alternative to 2-aminobenzaldehydes, and alpha-bromoketones was achieved in moderate to good yields under basic conditions. The reaction proceeded via sequential N-alkylation-intramolecular nucleophilic cyclization-elimination steps in a single operation. (C) 2015 Elsevier Ltd. All rights reserved.
Synthesis of 2-acylindoles from ?-(N-isatinyl) ketones
作者:V. I. Gorgos、L. M. Zorin、G. I. Zhungietu、M. A. Rekhter
DOI:10.1007/bf00515352
日期:1983.11
Reaction of 3-(2-nitrophenyl)-1-arylprop-2-en-1-ones with triethylphosphite in microwave revisited: One-pot synthesis of 2-aroylindoles and 2-arylquinolines
作者:Annah Gupta、Rajni Khajuria、Kamal K. Kapoor
DOI:10.1080/00397911.2015.1116582
日期:2016.1.2
One-pot synthesis of 2-aroylindoles and 2-arylquinolines has been achieved by the reductive cyclization of 3-(2-nitrophenyl)-1-arylprop-2-en-1-ones with triethylphosphite [P(OEt)(3)] under microwave irradiation. The formation of 2-arylquinolines by this method is unprecedented.
Kar, Samiran; Lahiri, Saswati, Journal of the Indian Chemical Society, 1999, vol. 76, # 11-12, p. 607 - 610