146763-69-1

Basic information

• Product Name: Propanedioic acid, [[4-(2-propynyloxy)phenyl]methylene]-, diethyl ester
• CAS NO: 146763-69-1
• Molecular Formula: C17H18O5
• Molecular Weight: 302.327
• Mol File: 146763-69-1.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Propanedioic acid, [[4-(2-propynyloxy)phenyl]methylene]-, diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Propanedioic acid, [[4-(2-propynyloxy)phenyl]methylene]-, diethyl ester(146763-69-1)
• EPA Substance Registry System: Propanedioic acid, [[4-(2-propynyloxy)phenyl]methylene]-, diethyl ester(146763-69-1)

Safety Data

• Hazardous Substances Data: 146763-69-1(Hazardous Substances Data)

Usage

General Description

Propanedioic acid, [[4-(2-propynyloxy)phenyl]methylene]-, diethyl ester is a chemical compound with the molecular formula C17H18O4. It is also known by the chemical name "Diethyl 3,5-Bis(2-propynyloxy)benzylidenemalonate." Propanedioic acid, [[4-(2-propynyloxy)phenyl]methylene]-, diethyl ester is a diethyl ester derivative of propanedioic acid that contains a substituted phenyl group with a propynyloxy moiety attached. It is commonly used in organic synthesis and as an intermediate in the production of various pharmaceuticals and agrochemicals. Propanedioic acid, [[4-(2-propynyloxy)phenyl]methylene]-, diethyl ester has potential applications in the field of materials science and can be used as a building block for the synthesis of novel materials with specific properties.

Upstream product

• 17315-86-5 2-(4-hydroxybenzylidene)malonic acid diethyl ester 
• 106-96-7 propargyl bromide 

Relevant articles and documents

Grafting Nature-Inspired and Bio-Based Phenolic Esters onto Cellulose Nanocrystals Gives Biomaterials with Photostable Anti-UV Properties

New nature-inspired and plant-derived p-hydroxycinnamate esters and p-hydroxycinnamate diesters provide excellent protection against UV radiation when incorporated into a matrix. Herein, an efficient and sustainable pathway is reported to graft these phenolic compounds onto cellulose nanocrystals (CNCs) via click-type copper-catalyzed azide/alkyne cycloaddition (CuAAC) reaction. The successful grafting of the phenolic esters on CNC surface was evidenced by a range of chemical analyses, and the degrees of substitution (DS) of the CNC were found to depend on the structure of the phenolic ester grafted. Moreover, aqueous suspensions of the phenolic ester-grafted CNCs not only strongly absorb in both the UVA and UVB regions, but they also exhibit average to very high photostability. Their wide spectrum UV-absorbing properties and their stability upon exposure to UV are highly influenced by the structure of the phenolic ester, particularly by the extra ester group in p-hydroxycinnamate diesters. These findings demonstrate that cellulose nanocrystals decorated with such plant-derived and nature-inspired phenolic esters are promising sustainable nanomaterials for anti-UV applications.