Microwave-Assisted Solid-Acid-Catalyzed Friedel-Crafts Alkylation and Electrophilic Annulation of Indoles Using Alcohols as Alkylating Agents
Publication type: Journal Article
Publication date: 2009-10-19
scimago Q2
wos Q2
SJR: 0.559
CiteScore: 4.6
Impact factor: 2.3
ISSN: 00397881, 1437210X
Catalysis
Organic Chemistry
Abstract
Alcohols are considered environmentally benign alkylating agents since the only by-product generated in their reactions is water. Herein, we report a microwave-assisted Friedel―Crafts alkylation and electrophilic annulation of indoles using alcohols as alkylating agents. Alkylation of indoles using tert-butyl alcohol gives 3-substituted tert-butylindoles. A domino electrophilic annulation/ aromatization of indoles using hexane-2,5-diol results in the formation of substituted carbazoles. The reaction is catalyzed by a strong, solid-acid catalyst montmorillonite K-10. The products were obtained in good yields and high selectivities.
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Kulkarni A. V., Kulkarni A., Torok B. Microwave-Assisted Solid-Acid-Catalyzed Friedel-Crafts Alkylation and Electrophilic Annulation of Indoles Using Alcohols as Alkylating Agents // Synthesis. 2009. Vol. 2009. No. 23. pp. 4010-4014.
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Kulkarni A. V., Kulkarni A., Torok B. Microwave-Assisted Solid-Acid-Catalyzed Friedel-Crafts Alkylation and Electrophilic Annulation of Indoles Using Alcohols as Alkylating Agents // Synthesis. 2009. Vol. 2009. No. 23. pp. 4010-4014.
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RIS
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TY - JOUR
DO - 10.1055/s-0029-1217052
UR - https://doi.org/10.1055/s-0029-1217052
TI - Microwave-Assisted Solid-Acid-Catalyzed Friedel-Crafts Alkylation and Electrophilic Annulation of Indoles Using Alcohols as Alkylating Agents
T2 - Synthesis
AU - Kulkarni, Aditya V.
AU - Kulkarni, Aditya
AU - Torok, Bela
PY - 2009
DA - 2009/10/19
PB - Georg Thieme Verlag KG
SP - 4010-4014
IS - 23
VL - 2009
SN - 0039-7881
SN - 1437-210X
ER -
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BibTex (up to 50 authors)
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@article{2009_Kulkarni,
author = {Aditya V. Kulkarni and Aditya Kulkarni and Bela Torok},
title = {Microwave-Assisted Solid-Acid-Catalyzed Friedel-Crafts Alkylation and Electrophilic Annulation of Indoles Using Alcohols as Alkylating Agents},
journal = {Synthesis},
year = {2009},
volume = {2009},
publisher = {Georg Thieme Verlag KG},
month = {oct},
url = {https://doi.org/10.1055/s-0029-1217052},
number = {23},
pages = {4010--4014},
doi = {10.1055/s-0029-1217052}
}
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MLA
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Kulkarni, Aditya V., et al. “Microwave-Assisted Solid-Acid-Catalyzed Friedel-Crafts Alkylation and Electrophilic Annulation of Indoles Using Alcohols as Alkylating Agents.” Synthesis, vol. 2009, no. 23, Oct. 2009, pp. 4010-4014. https://doi.org/10.1055/s-0029-1217052.