播放中国国产国语纯一级黄片免费看, 大鸡吧快来啊阿啊阿啊黄片在线播放, 中文精品日韩网站在线观看视频免费, 别揉我奶头~嗯~啊~一区二区三区,AV无码播放一级毛片免费古装,亚洲春色一区二区三区,91大神极品,美国一级大黄一片免费下载,午夜爽爽爽男女免费观看软件

Welcome to LookChem.com Sign In|Join Free

CAS

  • or
2,3-Quinoline dicarboxylic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

643-38-9

Post Buying Request

643-38-9 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

643-38-9 Usage

Synthesis Reference(s)

Journal of Heterocyclic Chemistry, 25, p. 1777, 1988 DOI: 10.1002/jhet.5570250634Synthetic Communications, 16, p. 157, 1986 DOI: 10.1080/00397918608057703Tetrahedron Letters, 43, p. 767, 2002 DOI: 10.1016/S0040-4039(01)02265-1

Check Digit Verification of cas no

The CAS Registry Mumber 643-38-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,4 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 643-38:
(5*6)+(4*4)+(3*3)+(2*3)+(1*8)=69
69 % 10 = 9
So 643-38-9 is a valid CAS Registry Number.
InChI:InChI=1/C11H7NO4/c13-10(14)7-5-6-3-1-2-4-8(6)12-9(7)11(15)16/h1-5H,(H,13,14)(H,15,16)

643-38-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name quinoline-2,3-dicarboxylic acid

1.2 Other means of identification

Product number -
Other names Acridinsaeure

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:643-38-9 SDS

643-38-9Relevant articles and documents

Method for preparing nitrogen-containing six-membered ring dicarboxylic acid

-

Paragraph 0048-0050; 0052, (2020/04/22)

The invention relates to compound preparation, particularly to a method for preparing nitrogen-containing six-membered ring dicarboxylic acid from a benzo nitrogen-containing six-membered ring compound. According to the method, a raw material compound and a sodium chlorate aqueous solution are catalyzed under an acidic condition to obtain nitrogen-containing six-membered ring dicarboxylic acid, wherein the raw material is a nitrogen-containing six-membered heterocyclic benzocyclic compound. According to the invention, the catalyst of the reaction system is low in toxicity and low in cost, no new impurity is generated in the post-treatment step, and large-scale production is facilitated.

Regioselective Cyanation of Six-Membered N-Heteroaromatic Compounds Under Metal-, Activator-, Base- and Solvent-Free Conditions

Sarmah, Bikash Kumar,Konwar, Monuranjan,Bhattacharyya, Dipanjan,Adhikari, Priyanka,Das, Animesh

, p. 5616 - 5625 (2019/11/22)

A regioselective cyanation of heteroaromatic N-oxides with trimethylsilyl cyanide has been developed to obtain 2-substituted N-heteroaromatic nitrile without the requirement of any external activator-, metal-, base-, and solvent. The present protocol is a straightforward, one-pot heteroaromatic C?H cyanation process, and proceeds smoothly in conventional heating but also under microwave irradiation with shorter reaction times. This approach now allows access to a broad class of quinoline N-oxides and other heteroarene N-oxides with high to good yields and can also be scaled up to obtain gram quantities. Further application of this process was observed and utilized in late-stage cyanation of the anti-malarial drug quinine as well as transformation of the 2-cyanoazines to a series of biologically important molecules. Based on the experimental observations, a plausible mechanism has also been proposed highlighting the dual role of trimethylsilyl cyanide as a nitrile source and as an activating agent. (Figure presented.).

New efficient access to fused (Het)Aryltetrahydroindolizinones via N-acyl iminium intermediates

Chiurato, Matteo,Boulahjar, Rajaa,Routier, Sylvain,Troin, Yves,Guillaumet, Gérald

scheme or table, p. 4647 - 4653 (2010/07/05)

In this paper, we described the preparation of fused (Het)Aryltetrahydroindolizinones via N-acyl iminium intermediates. Two different routes were also explored to achieve the synthesis. The first one consists in the intramolecular reaction of β-hydroxylactams whereas the second route one is an intermolecular condensation between a 2-formylester or a β-alkoxylactone and an appropriate primary amine. We also developed two heterocyclic strategies to obtain the adequate unavailable starting materials in pyridine, pyrazine, quinoline, and quinaxoline series and then perform all inter or intramolecular reactions. Scope and limitations are given.

Directed lithiation of unprotected quinolinecarboxylic acids

Rebstock, Anne-Sophie,Mongin, Florence,Trécourt, Fran?ois,Quéguiner, Guy

, p. 767 - 769 (2007/10/03)

The lithium salts of quinoline-2-carboxylic acid and 4-methoxyquinoline-2-carboxylic acid undergo deprotonation at C3 when treated with LTMP in THF at -25 and 0°C, respectively. The lithium salts of quinoline-3- and -4-carboxylic acids are more prone to n

Alkyl esters of substituted 2-methyl-3-quinolinecarboxylic acid and quinoline-2,3-dicarboxylic acid: dialkyl 3-(substituted)phenylaminobut-2-ene-dioates and methods for the preparation thereof

-

, (2008/06/13)

There are provided novel alkyl esters of substituted 2-methyl-3-quinolinecarboxylic acid and quinoline-2,3-dicarboxylic acid; novel dialkyl 3-(substituted)phenylaminobut-2-ene-dioates, useful as intermediates for the preparation of highly effective 2-(2-imidazolin-2-yl)quinoline herbicidal agents and methods for the preparation thereof.

Method for the preparation of anilinofumarate [quinoline-2,3- dicarboxylic]

-

, (2008/06/13)

The present invention relates to novel methods for the preparation of anilinofumarate [quinoline- 2,3-dicarboxylic acid], a useful intermediate in the preparation of 2-(2-imidazolin-2-yl)-quinoline-3-carboxylic acid herbicidal agents.

Method for the preparation of quinoline-2,3-dicarboxylic acid

-

, (2008/06/13)

The present invention relates to novel methods for the preparation of quinoline-2,3-dicarboxylic acid, useful for the preparation of the highly effective 2-(2-imidazolin-2-yl)quinoline-3-carboxylic acid herbicidal agents.

Pigment composition

-

, (2008/06/13)

A pigment composition contains a pigment and a dispersant. The dispersant is a phosphoric ester compound represented by the following general formula: wherein at least one of the three Rs is a residuum of a polyester chain containing as principal bonds thereof ester bonds of a polycarboxylic acid and a polyalcohol.

Pigment composition

-

, (2008/06/13)

A pigment composition contains a pigment and a dispersant. The dispersant is a polyester compound which contains, per molecule, a residuum of at least two benzene rings coupled together, an aromatic ring having at least 8 carbon atoms or a heterocyclic ring having at least 8 carbon atoms, and at least one ester bond as a principal bond.

Synthesis of 2,3-Quinolinedicarboxylic Acid

Maulding, Donald R.

, p. 1777 - 1779 (2007/10/02)

A new procedure for making 2,3-quinolinedicarboxylic acid (6), starting with aniline and maleic anhydride has been developed.Evidence for the formation of 2-anilino-3-formyl-N-phenylmaleimide (7) in the cyclization of 3-phenylimino-4-dimethylaminomethylene-N-phenylsuccinimide (4a) to N-phenylacridinimide (5a) is presented.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 643-38-9