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2-P-TOLYL-ISOINDOLE-1,3-DIONE, also known as 2-(4-methylphenyl)-1H-isoindole-1,3(2H)-dione, is an organic compound with the molecular formula C15H11NO2. It is a white crystalline solid that is soluble in organic solvents. This chemical is primarily used as an intermediate in the synthesis of various pharmaceuticals and agrochemicals, particularly in the production of certain herbicides and dyes. Its structure features a p-tolyl group (a methyl group attached to a phenyl ring) attached to an isoindole-1,3-dione core, which contributes to its reactivity and utility in chemical synthesis.

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  • 2142-03-2 Structure
  • Basic information

    1. Product Name: 2-P-TOLYL-ISOINDOLE-1,3-DIONE
    2. Synonyms: N-P-TOLYLPHTHALIMIDE;2-P-TOLYL-ISOINDOLE-1,3-DIONE;2-(4-Methylphenyl)-2H-isoindole-1,3-dione;2-(4-Methylphenyl)isoindoline-1,3-dione;2-p-Tolylisoindoline-1,3-dione;4-Phthalimidyltoluene
    3. CAS NO:2142-03-2
    4. Molecular Formula: C15H11NO2
    5. Molecular Weight: 237.25
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 2142-03-2.mol
  • Chemical Properties

    1. Melting Point: 206 °C
    2. Boiling Point: 418.2±38.0 °C(Predicted)
    3. Flash Point: N/A
    4. Appearance: /
    5. Density: 1.296±0.06 g/cm3(Predicted)
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. PKA: -0.02±0.20(Predicted)
    10. CAS DataBase Reference: 2-P-TOLYL-ISOINDOLE-1,3-DIONE(CAS DataBase Reference)
    11. NIST Chemistry Reference: 2-P-TOLYL-ISOINDOLE-1,3-DIONE(2142-03-2)
    12. EPA Substance Registry System: 2-P-TOLYL-ISOINDOLE-1,3-DIONE(2142-03-2)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 2142-03-2(Hazardous Substances Data)

2142-03-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2142-03-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,4 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2142-03:
(6*2)+(5*1)+(4*4)+(3*2)+(2*0)+(1*3)=42
42 % 10 = 2
So 2142-03-2 is a valid CAS Registry Number.

2142-03-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(4-methylphenyl)isoindole-1,3-dione

1.2 Other means of identification

Product number -
Other names 2-(4-methylphenyl)isoindoline-1,3-dione

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:2142-03-2 SDS

2142-03-2Relevant articles and documents

Synthesis of imides via palladium-catalyzed three-component coupling of aryl halides, isocyanides and carboxylic acids

Wang, Bo,He, Dan,Ren, Beige,Yao, Tuanli

, p. 900 - 903 (2020)

A palladium-catalyzed three-component synthesis of acyclic imides from feedstock aryl halides, carboxylic acids and isocyanides through the intermediacy of isoimides has been developed. The key to the success of this approach was controlled isocyanide slow addition and organic/aqueous biphasic conditions. This transition-metal-catalyzed approach features readily available starting materials, atom- and step-economy, good functional group compatibility and gram-scale synthetic capability. Utilization of this new method is illustrated in the late-stage functionalization of drugs Carprofen, Loxoprofen and Flurbiprofen. This strategy has also been successfully applied in the synthesis of cyclic imides including phthalimide, homophthalimide, and 2H-2-benzazepine-1,3-dione derivatives.

L -Proline-Catalyzed Synthesis of Phthalimide Derivatives and Evaluation of Their Antioxidant, Anti-Inflammatory, and Lipoxygenase Inhibition Activities

Perveen, Shagufta,Orfali, Raha

, (2018)

A study was planned to synthesize the phthalimide derivatives as phthalimides have versatile biological activities. To synthesize the phthalimide derivatives, initially the reaction was optimized with various catalysts, and L-proline was found to be the best catalyst as it provided excellent yield. A series of phthalimide derivatives was synthesized by facile one-top reaction of phthalic acid with aryl amines under mild reaction conditions in the presence of L-proline as catalyst. Products were obtained in excellent yields and structurally characterized by 1H, 13C NMR, and mass spectral data. Products 1-7 were evaluated for antioxidant, anti-inflammatory, and lipoxygenase enzyme inhibition activities. Compounds 1 and 4 showed potent antioxidant activity under DPPH with IC50 values 27.3 and 25.0 μM when compared with the standard BHA (IC50 = 44.2 μM), respectively. Compounds 1 and 4 further showed strong lipoxygenase inhibition activity with IC50 values 21.34 and 20.45 μM when compared with standard baicalein (IC50 = 22.60 μM), respectively. Compound 2 was found to be promising and about equal to the used standard aspirin in the inhibition of bovine serum albumin denaturation, while other compounds showed weak-to-moderate % inhibition.

A rapid synthesis of N-aryl phthalimides under microwave irradiation in the absence of solvent

Li, Hui-Zhang,Zhang, Jin-Song,Zhou, Ya-Ming,Li, Tong-Shuang

, p. 927 - 930 (2002)

A mixture of phthalic anhydride (1) and aromatic amines (2a-h) were irradiated in a microwave oven for 2-10 min to provide N-aryl phthalimides (3a-h) in 91-95% yields.

A New Simple and Efficient Synthesis of N-Aryl Phthalimides in Ionic Liquid [bmim][PF6]

Zhou, Mei-Yun,Li, Yi-Qun,Xu, Xin-Ming

, p. 3777 - 3780 (2003)

The room temperature ionic liquid [bmim][PF6], namely 1-butyl-3-methyl-imidazolium hexafluorophosphate, is used as an alternative solvent to classic solvents for the synthesis of a series of N-aryl phthalimides in good to excellent yields.

“On water” nano-Cu2O-catalyzed CO-free one-pot multicomponent cascade cyanation-annulation-aminolysis reaction toward phthalimides

Wen, Xiaowei,Liu, Xiaojuan,Yang, Zhiqi,Xie, Menglan,Liu, Yuxi,Long, Lipeng,Chen, Zhengwang

supporting information, p. 1738 - 1743 (2021/03/14)

An efficient nano-Cu2O-catalyzed cascade multicomponent reaction of 2-halobenzoic acids and trimethylsilyl cyanide with diverse amines was developed using water as a solvent, affording versatileN-substituted phthalimide derivatives in moderate to excellent yields. This novel strategy features carbon monoxide gas-free, environmentally benign, one-pot multistep transformation, commercially available reagents, a cheap catalyst without any additives, wide functional group tolerance, and operational convenience.

Electroselective and Controlled Reduction of Cyclic Imides to Hydroxylactams and Lactams

Bai, Ya,Shi, Lingling,Zheng, Lianyou,Ning, Shulin,Che, Xin,Zhang, Zhuoqi,Xiang, Jinbao

supporting information, p. 2298 - 2302 (2021/04/05)

An efficient and practical electrochemical method for selective reduction of cyclic imides has been developed using a simple undivided cell with carbon electrodes at room temperature. The reaction provides a useful strategy for the rapid synthesis of hydroxylactams and lactams in a controllable manner, which is tuned by electric current and reaction time, and exhibits broad substrate scope and high functional group tolerance even to reduction-sensitive moieties. Initial mechanistic studies suggest that the approach heavily relies on the utilization of amines (e.g., i-Pr2NH), which are able to generate α-aminoalkyl radicals. This protocol provides an efficient route for the cleavage of C-O bonds under mild conditions with high chemoselectivity.

Visible-Light-Induced Metal-/Photocatalyst-Free C-H Bond Imidation of Arenes

Kuribara, Takahito,Nakajima, Masaya,Nemoto, Tetsuhiro

supporting information, p. 2235 - 2239 (2020/03/13)

In this study, a visible-light-induced intermolecular C-H bond imidation of arenes was achieved at ambient condition. By using simple phthalimide with (diacetoxyiodo)benzene and molecular iodine, direct metal-/photocatalyst-free C-N bond formation was achieved. The imidation protocol was designed by using time-dependent density functional theory calculations and experimentally demonstrated for 28 substrates with as high as 96% yield. Mechanistic studies indicated that radical-mediated aromatic substitution occurred via photolysis of N-iodophthalimide under visible-light irradiation.

Palladium Catalyzed Regioselective Synthesis of Substituted Biaryl Amides through Decarbonylative Arylation of Phthalimides

Samanta, Partha Kumar,Biswas, Papu

, p. 3968 - 3976 (2019/03/26)

The Pd(OAc)2 catalyzed cross-coupling of N-substituted phthalimides with aryl halide provides a single step direct access of a wide range of synthetically appealing ortho-substituted biarylamides in high yields through unique carbonyl (CO) replacement. The reaction proceeds through a ligand-free condition and is well tolerant to the diverse functionality of both imide and halide units. The reaction negates any requirement of organometallic reagent and needs a shorter reaction time and comparatively lower temperature as required for previously reported decarbonylative processes.

Ru-Catalyzed Selective C-H Bond Hydroxylation of Cyclic Imides

Yuan, Yu-Chao,Bruneau, Christian,Dorcet, Vincent,Roisnel, Thierry,Gramage-Doria, Rafael

, p. 1898 - 1907 (2019/02/05)

We report on cyclic imides as weak directing groups for selective monohydroxylation reactions using ruthenium catalysis. Whereas acyclic amides are known to promote the hydroxylation of the C(sp2)-H bond enabling five-membered ring ruthenacycle intermediates, the cyclic imides studied herein enabled the hydroxylation of the C(sp2)-H bond via larger six-membered ruthenacycle intermediates. Furthermore, monohydroxylated products were exclusively obtained (even in the presence of overstoichiometric amounts of reagents), which was rationalized by the difficulty to accommodate coplanar intermediates once the first hydroxyl group was introduced into the substrate. The same reactivity was observed in the presence of palladium catalysts.

Br?nsted acid mediated intramolecular cyclopropane ring expansion/[4 + 2]-cycloaddition

Li, Jian,Zhu, Shangrong,Xu, Qiuneng,Liu, Li,Yan, Shenghu

, p. 10004 - 10008 (2019/12/23)

A cascade reaction of 3-hydroxy-2-phenylisoindolin-1-one and cyclopropyl ketone has been developed via a Br?nsted acid-promoted ring-opening/intramolecular cross-cycloaddition/[4 + 2]-cycloaddition process. The developed methodology provides straightforward access to pentacyclic isoindolin-1-one derivatives under simple reaction conditions.

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