313549-89-2Relevant academic research and scientific papers
Nickel-Catalyzed Reductive Cross-Coupling of N-Acyl and N-Sulfonyl Benzotriazoles with Diverse Nitro Compounds: Rapid Access to Amides and Sulfonamides
Qu, Erdong,Li, Shangzhang,Bai, Jin,Zheng, Yan,Li, Wanfang
supporting information, p. 58 - 63 (2021/12/27)
Herein we report a Ni-catalyzed reductive transamidation of conveniently available N-acyl benzotriazoles with alkyl, alkenyl, and aryl nitro compounds, which afforded various amides with good yields and a broad substrate scope. The same catalytic reaction conditions were also applicable for N-sulfonyl benzotriazoles, which could undergo smooth reductive coupling with nitroarenes and nitroalkanes to afford the corresponding sulfonamides.
N -Acylbenzotriazoles as Proficient Substrates for an Easy Access to Ureas, Acylureas, Carbamates, and Thiocarbamates via Curtius Rearrangement Using Diphenylphosphoryl Azide (DPPA) as Azide Donor
Yadav, Mangal S.,Singh, Sumt K.,Agrahari, Anand K.,Singh, Anoop S.,Tiwari, Vinod K.
, p. 2494 - 2502 (2021/03/26)
A diverse range of ureas, N -acylureas, carbamates, and thiocarbamates has been synthesized in good to excellent yields by reacting N -acylbenzotriazoles individually with amines or amides or phenols or thiols in the presence of diphenylphosphoryl azide (DPPA) as a suitable azide donor in anhydrous toluene at 110 °C for 3-4 hours. In this route, DPPA was found to be a good alternative to trimethylsilyl azide and sodium azide for the azide donor in Curtius degradation. The high reaction yields, one-pot and metal-free conditions, straightforward nature, easy handling, use of readily available reagents, and in many cases avoidance of column chromatography are the notable features of the devised protocol.
Phthalazinone-Assisted C-H Amidation Using Dioxazolones under Rh(III) Catalysis
Jeoung, Daeun,Kim, Kunyoung,Han, Sang Hoon,Ghosh, Prithwish,Lee, Suk Hun,Kim, Saegun,An, Won,Kim, Hyung Sik,Mishra, Neeraj Kumar,Kim, In Su
, p. 7014 - 7023 (2020/07/07)
The preparation of phthalazinone derivatives is pivotal for their utilization as pharmaceutical agents and other entities. Herein, we report the phthalazinone-assisted carbon-nitrogen bond forming reaction using dioxazolones as robust amidation sources under Rh(III) catalysis. The broad functional group tolerance and complete site-selectivity are observed. Notably, a series of transformations of synthesized compounds into biologically relevant N-heterocycles demonstrates the applicability of the developed methodology.
Trichloroisocyanuric Acid Mediated High-Yielding Synthesis of N -Acylbenzotriazoles under Mild Reaction Conditions
Singh, Mala,Singh, Anoop S.,Mishra, Nidhi,Agrahari, Anand K.,Tiwari, Vinod K.
, p. 2183 - 2190 (2019/05/10)
N -Acylbenzotriazoles are achieved in good yields from the corresponding carboxylic acids by using only 0.35 equivalent of trichloroisocyanuric acid and 1.2 equivalents of PPh 3. The salient features of the developed reaction path include an ec
Synthesis of benzotriazoles derivatives and their dual potential as α-amylase and α-glucosidase inhibitors in vitro: Structure-activity relationship, molecular docking, and kinetic studies
Hameed, Shehryar,Kanwal,Seraj, Faiza,Rafique, Rafaila,Chigurupati, Sridevi,Wadood, Abdul,Rehman, Ashfaq Ur,Venugopal, Vijayan,Salar, Uzma,Taha, Muhammad,Khan, Khalid Mohammed
, (2019/09/10)
Benzotriazoles (4–6) were synthesized which were further reacted with different substituted benzoic acids and phenacyl bromides to synthesize benzotriazole derivatives (7–40). The synthetic compounds (7–40) were characterized via different spectroscopic techniques including EI-MS, HREI-MS, 1H-, and 13C NMR. These molecules were examined for their anti-hyperglycemic potential hence were evaluated for α-glucosidase and α-amylase inhibitory activities. All benzotriazoles displayed moderate to good inhibitory activity in the range of IC50 values of 2.00–5.6 and 2.04–5.72 μM against α-glucosidase and α-amylase enzymes, respectively. The synthetic compounds were divided into two categories “A” and “B”, in order to understand the structure-activity relationship. Compounds 25 (IC50 = 2.41 ± 1.31 μM), (IC50 = 2.5 ± 1.21 μM), 36 (IC50 = 2.12 ± 1.35 μM), (IC50 = 2.21 ± 1.08 μM), and 37 (IC50 = 2.00 ± 1.22 μM), (IC50 = 2.04 ± 1.4 μM) with chloro substitution/s at aryl ring were found to be most active against α-glucosidase and α-amylase enzymes. Molecular docking studies on all compounds were performed which revealed that chloro substitutions are playing a pivotal role in the binding interactions. The enzyme inhibition mode was also studied and the kinetic studies revealed that the synthetic molecules have shown competitive mode of inhibition against α-amylase and non-competitive mode of inhibition against α-glucosidase enzyme.
Visible-Light-Induced C(sp2)-P Bond Formation by Denitrogenative Coupling of Benzotriazoles with Phosphites
Jian, Yong,Chen, Ming,Huang, Binbin,Jia, Wei,Yang, Chao,Xia, Wujiong
supporting information, p. 5370 - 5374 (2018/09/13)
A visible-light-induced denitrogenative phosphorylation of benzotriazoles is presented, in which diverse substituted aryl phosphonates could be obtained in good to excellent yields. This efficient protocol exhibits good tolerance with various functional g
A new methodology for the synthesis of N-acylbenzotriazoles
Singh, Anoop S.,Agrahari, Anand K.,Singh, Mala,Mishra, Nidhi,Tiwari, Vinod K.
, p. 80 - 88 (2017/08/10)
A facile and economic path for an easy access of diverse N-acylbenzotriazoles from carboxylic acid has been devised using NBS/PPh3 in anhydrous dichloromethane. High yield of product was obtained at room temperature in one hour reaction time under mild reaction conditions.
A Biocatalytic Route to Highly Enantioenriched β-Hydroxydioxinones
Betori, Rick C.,Miller, Eric R.,Scheidt, Karl A.
supporting information, p. 1131 - 1137 (2017/04/11)
A novel biocatalytic system to access a wide variety of β-hydroxydioxinones from β-ketodioxinones employing commercial engineered ketoreductases has been developed. This practical system provides a remarkably straightforward solution to limitations in acc
An efficient one-pot synthesis of: N, N ′-disubstituted ureas and carbamates from N -acylbenzotriazoles
Singh, Anoop S.,Kumar, Dhananjay,Mishra, Nidhi,Tiwari, Vinod K.
, p. 84512 - 84522 (2016/10/12)
A facile and high-yielding one-pot synthesis of carbamates and N,N′-disubstituted symmetrical ureas from N-acylbenzotriazoles has been devised. It is believed that, the intermediate acyl-azide undergo Curtius rearrangement and in different solvents gives different products i.e. carbamates in alcohols and N,N′-disubstituted symmetrical urea in THF.
Identification of a novel class of quinoline-oxadiazole hybrids as anti-tuberculosis agents
Jain, Puneet P.,Degani, Mariam S.,Raju, Archana,Anantram, Aarti,Seervi, Madhav,Sathaye, Sadhana,Ray, Muktikanta,Rajan
, p. 645 - 649 (2016/01/09)
A series of novel quinoline-oxadiazole hybrid compounds was designed based on stepwise rational modification of the lead molecules reported previously, in order to enhance bioactivity and improve druglikeness. The hybrid compounds synthesized were screened for biological activity against Mycobacterium tuberculosis H37Rv and for cytotoxicity in HepG2 cell line. Several of the hits exhibited good to excellent anti-tuberculosis activity and selectivity, especially compounds 12m, 12o and 12p, showed minimum inhibitory concentration values 500. The results of this study open up a promising avenue that may lead to the discovery of a new class of anti-tuberculosis agents.
