Article
Chemistry, Organic
Debojyoti Bag, Sanghapal D. Sawant
Summary: This study presents an unprecedented Au(I)-catalyzed strategy for intramolecular carbonyl-alkyne cyclization/indole addition. It allows for the synthesis of unsymmetrical bis(indolyl)methanes incorporating 3(2H)-furanone and the generation of a stereocenter at the furanone junction using easily accessible indole-tethered ynediones. Moreover, this protocol can be extended to synthesize a variety of indolyl-(hetero)arylmethanes by utilizing different (hetero)arenes as nucleophile coupling partners.
Article
Biochemistry & Molecular Biology
Qi Li, Xiu-Xia Liang, Wang Zhang, Man-Yi Han
Summary: A novel double Friedel-Crafts reaction of acylsilanes in water is reported, which allows for the synthesis of bis(indolyl)methane derivatives with 1-hydroxy or 1-silyl substituents in moderate to high yield. The selectivity of the reaction is regulated by the hydrogen bonds in the 5-hydroxyindole, leading to the synthesis of 1-hydroxy-bis(indolyl)methane derivatives.
Article
Chemistry, Physical
Ngoc-Khanh Nguyen, Minh-Tuan Ha, Hoang Yen Bui, Quang Thang Trinh, Bich Ngoc Tran, Van Tuyen Nguyen, Tran Quang Hung, Tuan Thanh Dang, Xuan Hoan Vu
Summary: CuFe2O4 heterogeneous catalyst is disclosed to be air stable and highly efficient for alkylation of indoles with alcohols, resulting in very good yields of bis(3-indolyl)methanes. The catalyst can be magnetically recycled at least five times without significant loss of catalytic activity.
CATALYSIS COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Vikas D. Kadu, Amruta A. Patil, Prajakta R. Shendage
Summary: An environmentally friendly synthesis method for 3,3'-bis(indolyl)methanes (BIMs) has been developed using aryl-methylamines and indoles as substrates under aerobic conditions in the presence of oxone. The synthesis of BIMs using ethanol as a reaction medium represents a practical approach. The method shows good tolerance towards various functional groups and achieves high yields of synthesized BIMs.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Organic
Ngoc-Khanh Nguyen, Duc Long Tran, Tran Quang Hung, Tra My Le, Nguyen Thi Son, Quang Thang Trinh, Tuan Thanh Dang, Peter Langer
Summary: BIM plays a crucial role in the structure of many bioactive compounds, and in this study, an air stable and convenient Cu(OAc)(2) catalyst was reported for the alkylation of indoles with alcohols to give bis(3-indolyl) methanes in very good yields.
TETRAHEDRON LETTERS
(2021)
Article
Chemistry, Organic
Bing Shu, Shao-Yong Chen, Nan-Xiang Deng, Tao Zheng, Hui Xie, Xiao-Ling Xie, Jia-Qiang Wu, Hua Cao, Shang-Shi Zhang
Summary: An original and divergent synthetic method for fluorinated 2-benzylated indoles and 2,2'-bis(indolyl)methanes has been established via Rh(iii)-catalyzed C-H/C-F activation, using 3,3-difluoro-2-exo-methylidene indolines as novel cross-coupling partners. This protocol demonstrated a broad substrate scope, high functional-group compatibility, and was further studied on gram-scale and mechanistically.
ORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Asra Rashtiani, Ramin Ghorbani-Vaghei
Summary: A novel heterogeneous catalyst based on Chitosan@MgCuAl-LDH@Fe3O4 magnetic nanocomposite (Fe3O4@MgCuAl-LDH@CS/Cu(II)) was reported for the electrophilic substitution reaction between indoles and aromatic aldehydes under ultrasonic conditions. The catalyst showed enhanced catalytic performances compared to traditional heating and could be easily separated and reused multiple times without significant loss in its catalytic activity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Wen-Run Zhu, Qiong Su, Xiao-Yi Deng, Jia-Sheng Liu, Tao Zhong, Shan-Shui Meng, Ji-Tao Yi, Jiang Weng, Gui Lu
Summary: A novel method for accessing chiral bis(indolyl)methanes (BIMs) with quaternary stereocenters is developed, showing excellent efficiency and enantioselectivity. The obtained enantioenriched BIMs exhibit practicality through versatile transformations and high antimicrobial activities.
Article
Chemistry, Multidisciplinary
Bijeta Mitra, Pranab Ghosh
Summary: The study demonstrates that humic acid can be utilized as an efficient and environmentally friendly catalyst for the preparation of various organic compounds, with advantages such as non-toxicity, biodegradability, low catalyst loading, and good functional group tolerance. This strategy has significant environmental implications, and humic acid can be reused multiple times without losing its activity.
Review
Chemistry, Organic
Leena Khanna, Mansi, Shilpa Yadav, Neeti Misra, Pankaj Khanna
Summary: Bis(indolyl) methane (BIM) derivatives exhibit various biological properties, leading to extensive exploration in their synthesis. The use of water as a solvent in organic synthesis has gained attention for economic and eco-friendly reasons, showing high reactivities and chemo-selectivity under aqueous conditions.
SYNTHETIC COMMUNICATIONS
(2021)
Article
Chemistry, Physical
J. Antonio Rivas-Loaiza, J. Pablo Garcia-Merinos, Martha I. Ramirez-Diaz, Heraclio Lopez-Ruiz, Yliana Lopez
Summary: Bis(indolyl)methane derivatives were synthesized using an organic catalyst, and their antibacterial activity was evaluated.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Materials Science, Multidisciplinary
Paramasivam Sivaguru, Nagarajan Sedhu, Appaswami Lalitha
Summary: A practical and efficient synthesis of new electroactive azobenzene derivatives of bis(indolyl)methanes has been achieved via the Friedel-Crafts reaction using propylphosphonic anhydride as an activating agent. The synthesized compounds showed good antioxidant properties and their electrochemical redox behavior was assessed through cyclic voltammetry studies.
Article
Chemistry, Multidisciplinary
Vikas D. Kadu, Maruti S. Gund, Amar S. Godage
Summary: A simple process for arylmethylamines C(sp(3))-H bond functionalization under aerobic conditions has been developed, resulting in successful synthesis of 3,3'-bis(indolyl)methanes (BIMs) and tris(indolyl)methanes with yields up to 94%. The use of iodine as a catalyst shows good tolerance towards different functional groups and has great potential in exploring substrate scope.
Article
Chemistry, Multidisciplinary
Ana L. Cardoso, Susana M. M. Lopes, Carla Grosso, Marta Pineiro, Americo Lemos, Teresa M. V. D. Pinho e Melo
Summary: This experiment involves the one-pot regio- and stereoselective synthesis of dipyrromethane and bis(indolyl)methane through consecutive reactions of nitrosoalkenes with pyrrole or indole. Students will have the opportunity to explore alternative reaction pathways by using electrophilic conjugated nitrosoalkenes, and they will learn about purification techniques, compound purity analysis, and structural analysis methods in organic chemistry.
JOURNAL OF CHEMICAL EDUCATION
(2021)
Article
Chemistry, Inorganic & Nuclear
Gautam Kumar, Ananya Srivastava, Vinod P. Singh
Summary: A novel catalytic system consisting of a nickel(ii) complex of (E)-N'-((2-amino-5-chlorophenyl)(phenyl)methylene)-2-hydroxy-benzohydrazide (APH) supported on graphene oxide (GO) has been synthesized. The synthesized catalyst has been characterized using various techniques, including NMR, FTIR, HRMS, PXRD, Raman, SEM, TEM, EDX, and XPS. The catalytic efficiency of the system has been demonstrated in the synthesis of diverse bis(indolyl)methane derivatives, with high to excellent yields obtained under optimized reaction conditions. The catalyst also exhibits outstanding recyclability for six subsequent cycles without significant loss in activity, thanks to the strong covalent interaction between the APH-Ni(ii) complex and GO.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Applied
G. Robin Wilson, Ankita Sharma, Divya Sachdev, Amit Dubey
JOURNAL OF POROUS MATERIALS
(2016)
Article
Chemistry, Applied
Divya Sachdev, Priyanka H. Maheshwari, Amit Dubey
JOURNAL OF POROUS MATERIALS
(2016)
Article
Chemistry, Multidisciplinary
Divya Sachdev, Amit Dubey, G. Robin Wilson, Ankita Sharma
NEW JOURNAL OF CHEMISTRY
(2015)
Article
Chemistry, Analytical
Divya Sachdev, Vinay Kumar, Priyanka H. Maheshwari, Renu Pasricha, Deepthi, Neeraj Baghel
SENSORS AND ACTUATORS B-CHEMICAL
(2016)
Article
Chemistry, Multidisciplinary
Chanchal Gupta, Priyanka H. Maheshwari, Divya Sachdev, A. K. Sahu, S. R. Dhakate
Article
Chemistry, Inorganic & Nuclear
Divya Sachdev
INORGANIC AND NANO-METAL CHEMISTRY
(2017)
Article
Chemistry, Physical
Veeresh Kumar, Nupur Bahadur, Divya Sachdev, Shweta Gupta, G. B. Reddy, Renu Pasricha
Article
Chemistry, Physical
Divya Sachdev, Amit Dubey
CATALYSIS COMMUNICATIONS
(2013)
Article
Chemistry, Physical
Divya Sachdev, G. Robin Wilson, Neel Mani Srivastava, Amit Dubey
CATALYSIS COMMUNICATIONS
(2014)
Article
Chemistry, Physical
Divya Sachdev, Amit Dubey
Article
Chemistry, Applied
G. Robin Wilson, Ankita Sharma, Neel Mani Srivastava, Divya Sachdev, Amit Dubey
JOURNAL OF POROUS MATERIALS
(2015)
Article
Chemistry, Multidisciplinary
Veeresh Kumar, Ajay Kumar, Ashok M. Biradar, G. B. Reddy, Divya Sachdev, Renu Pasricha
Article
Nanoscience & Nanotechnology
Vinay Kumar, Divya Sachdev, Renu Pasricha, Priyanka H. Maheshwari, Neetu Kumra Taneja
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Multidisciplinary
Akshay Bisht, Akshay Goyal, Divya Sachdev, Renu Pasricha
SEPARATION SCIENCE AND TECHNOLOGY
(2019)
Article
Biochemistry & Molecular Biology
Ann V. Isaac, Sandhya Kumari, Ramya Nair, Deepak Raj Urs, Sujith Raj Salian, Guruprasad Kalthur, Satish Kumar Adiga, Jyothsna Manikkath, Srinivas Mutalik, Divya Sachdev, Renu Pasricha
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2017)