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2H-1-Benzopyran, 3,4-dihydro-2,2,4-triphenyl- is a complex organic compound with the chemical formula C27H21O. It is a derivative of the benzopyran class of compounds, which are characterized by a benzene ring fused to a pyran ring. This specific compound features three phenyl groups attached to the 2, 2, and 4 positions of the benzopyran structure, with the 3 and 4 positions being part of a dihydro ring system. The compound is known for its potential applications in the synthesis of various pharmaceuticals and agrochemicals due to its unique structure and properties. It is important to note that handling and use of 2H-1-Benzopyran, 3,4-dihydro-2,2,4-triphenyl- should be done with caution, as it may have specific safety and environmental considerations.

5655-25-4

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5655-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5655-25-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,5 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5655-25:
(6*5)+(5*6)+(4*5)+(3*5)+(2*2)+(1*5)=104
104 % 10 = 4
So 5655-25-4 is a valid CAS Registry Number.

5655-25-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,2,4-Triphenyl-chroman

1.2 Other means of identification

Product number -
Other names 2,2,4-Triphenylchroman

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:5655-25-4 SDS

5655-25-4Relevant academic research and scientific papers

Multicomponent Condensation Reactions via ortho-Quinone Methides

Allen, Emily E.,Zhu, Calvin,Panek, James S.,Schaus, Scott E.

, p. 1878 - 1881 (2017/04/11)

Iron(III) salts promote the condensation of aldehydes or acetals with electron-rich phenols to generate ortho-quinone methides that undergo Diels - Alder condensations with alkenes. The reaction sequence occurs in a single vessel to afford benzopyrans in up to 95% yield. The reaction was discovered while investigating a two-component strategy using 2-(hydroxy(phenyl)methyl)phenols to access the desired ortho-quinone methide in a Diels - Alder condensation. The two-component condensation also afforded the corresponding benzopyran products in yields up to 97%. Taken together, the two- and three-component strategies using ortho-quinone methide intermediates provide efficient access to benzopyrans in good yields and selectivities.

Novel Route for the Construction of Chroman Ring System Using Cross-Coupling between Benzylic and Aliphatic Alcohols in the Presence of NaHSO4/SiO2

Aoyama, Tadashi,Furukawa, Takuya,Hayakawa, Mamiko,Takido, Toshio,Kodomari, Mitsuo

supporting information, p. 1875 - 1879 (2015/08/06)

Novel route for the construction of chromans from benzylic and aliphatic alcohols in the presence of NaHSO4/SiO2 has been developed. In this reaction, substituted olefins are formed from benzylic and aliphatic alcohols and then conve

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