Buy Quality 4-pheny...

Buy Quality 4-phenylethynyl phthalic anhydride 119389-05-8 Global Trade
Buy Quality 4-phenylethynyl phthalic anhydride 119389-05-8 Global Trade

Buy Quality 4-phenylethynyl phthalic anhydride 119389-05-8 Global Trade

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1 Kilogram

Negotiable

  • Min.Order :1 Kilogram
  • Purity: 99.00%
  • Payment Terms : L/C,T/T

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4-phenylethynyl phthalic anhydride 119389-05-8 Buy Quality 119389-05-8 119389-05-8 Best Price

Quick Details

  • Appearance:Pale yellow to yellow powder
  • Application:Organic intermediates
  • PackAge:Can be packaged in accordance with customer requirements
  • ProductionCapacity:10|Kilogram|Day
  • Storage:Store in a cool, dry place. Store in a tightly closed container.
  • Transportation:By Sea or Air or Express

Superiority:

1. High quality, competitive prices and excellent service.

2. The purity of products >99%.

3. Sufficient inventory, fast delivery, and the ability to meet customer needs.

4. Safe and prudent shipping a variety of transportation modes for you to choose.

5. Clearance rate of multiple ports >99%.

6. Delivery time within 7 days after payment and 24 hours of quality after-sales service.

7. Free Sample.

MASCOT I.E. Co., Ltd  was founded in 2006, is a professional manufacturer, providing stable and high quality of Electronic intermediates (OLED materials) & Pharmaceuticals intermediates.

Mascot,taking scientific and technical innovation as orientation and product quality as a fundamental, hopes to establish a good business relationship of mutual benefit and double win with colleagues at home and abroad for a better future.

4-PEPA；4-phenylethynyl phthalic anhydride 119389-05-8

Appearance: Pale yellow to yellow powder

Purity: 99%

Details:

Buy Quality 4-phenylethynyl phthalic anhydride 119389-05-8 Global Trade

 

Properties

Product Name 4-phenylethynyl phthalic anhydride
Cas No. 119389-05-8
Molecular formula C16H8O3
Synonyms 4-PEPA;4-PHENYLETHYNYLPHTHALIC ANHYDRIDE;4-(2-PHENYLETHYNYL)PHTHALIC ANHYDRIDE;3-Phenylethynylphthalic anhydride;5-Phenylethynyl-phthalic anhydride;4-PHENYLETHYNYLPHTALIC ANHYDRIDE;4-Phenylethynylphthalic anhydride ,98%;4-(Phenylethynyl)-1,2-benzenedicarboxylic anhydride
Chemical Properties Light yellow to light yellow-green crystal or powder
Melting point 152 °C
Boiling point 466.9±28.0 °C(Predicted)
density 1.38±0.1 g/cm3(Predicted)
storage temp. Inert atmosphere,Room Temperature
Uses 4-Phenylethynylphthalic Anhydride is a useful research chemical
EPA Substance Registry System 1,3-Isobenzofurandione, 5-(phenylethynyl)- (119389-05-8)

 

Description&Application

4-Phenylethynylphthalic Anhydride is a useful research chemical.

 

Preparation Products

Generally, the cross-coupling reaction between aryl halides and alkene halides or terminal alkyne
catalyzed by palladium complexes is named Sonogashira cross-coupling reaction, and it is the
effective reaction to synthesis aryne, eneyne and acetyenic ketone[1-5]. The general equation of the
reaction has been shown as below:
The cross-coupling reaction between aryl halides and alkenes or terminal alkynes catalyzed by
palladium complexes had undergone such a period that Cassar firstly discovered it, then Heck and
Sonogashira et al. modified it subsequently. Therefore, these kind of reactions were named
Cassar-Heck-Sonogashira reaction in some previous literatures. In some subsequent literatures,
whether the cocatalyst CuI was added or not, the reaction was named Sonogashira reaction. However,
the by-product 1,3-diyne would be inevitably generated if CuI was existent in the reaction system,
and it can not only reduce the effective availability of alkynes, but also can complicate the separation
and purification of the organic product. Therefore, the investigation of the Sonogashira
cross-coupling reactions without the cocatalyst CuI naturally shows a great significance. R. Wang et
al.[3] chosen 2, 2’-dipyridylamine as a supporting ligand in the palladium-catalyzed Sonogashira
cross-coupling reaction, then they found that this palladium complexe can effectively catalyze the
reactions between aryl iodides and terminal alkynes with different steric hindrance in the absence of
copper in neat water at room temperature. H. Wu et
al.[6] synthesized a di-(1-butyl-2-diphenylphosphino-3-methylimidazolium)-dichloropalladium(II) hexafluorophosphat, and it can fulfill the high catalytic efficiency for the Sonogashira reactions between aryl iodides and aryl bromides with several terminal acetylenes under aerobic and CuI-free conditions. In addition, M.
Nasrollahzadeh et al.[7] prepared a Pd nanoparticles catalyst by green method, and high activity for
amine- and copper-free Sonogashira coupling reaction between aryl iodides and terminal alkynes
under mild and aerobic conditions can be achieved

 

Company Information

Mascot I.E.Co.,Ltd. is founded in 2006, with registered capital at 10million RMB. It is an export-oriented enterprise, We have been dedicated to providing stable-quality Fine chemicals and high-efficient professional exporting service.

Mascot has an excellent R & D team with experience over 293 years as well as well-equipped R & D laboratory and cooperated OEM plants in Jiangsu、 Jiangxi、Shandong province etc. We are committed to stable- supplying & development Fine chemicals, which are widely applied in Pharmaceutical industry/Electronic Chemical/ Polyimide monomer etc.

Mascot has always adhered to the concept of symbiotic development with our Customers, committed to building mutual benefit and win-win relationship, and set up a stable bridge with Customers.

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