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(E)-3-(2'-oxo-2'-phenyl)ethylidene isobenzofuran-1(3H)-one is a complex organic compound characterized by a unique molecular structure. It features an isobenzofuran-1(3H)-one core, which is a heterocyclic ring system with a carbonyl group at position 1. The compound is further distinguished by a (E)-3-(2'-oxo-2'-phenyl)ethylidene moiety, indicating the presence of a phenyl group with a carbonyl group at the 2' position, which is connected to the isobenzofuran through an ethylidene bridge in the E configuration. This specific arrangement of atoms and functional groups gives the compound its distinct chemical properties and potential applications in various fields, such as pharmaceuticals or materials science.

4333-67-9

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4333-67-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4333-67-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,3 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4333-67:
(6*4)+(5*3)+(4*3)+(3*3)+(2*6)+(1*7)=79
79 % 10 = 9
So 4333-67-9 is a valid CAS Registry Number.

4333-67-9Relevant academic research and scientific papers

A convenient and highly regio and stereoselective method for the synthesis of (E)-3-alkylidene isobenzofuran-1(3H)-ones (phthalides)

Mukhopadhyay, Rupa,Kundu, Nitya G

, p. 9475 - 9480 (2007/10/03)

2-Iodobenzyl alcohol on treatment with acetylenic carbinols in the presence of a palladium catalyst and copper(I) iodide as a co-catalyst afforded disubstituted alkynes. Jones oxidation of the disubstituted alkynes led to (E)-3-alkylidene isobenzofuran-1(

A Highly Efficient Synthesis of 1-Alkylidene-1,3-Dihydroisobenzofurans and 3-Alkylidene Isobenzofuran-1(3H)-ones(phthalides through Palladium-Copper Catalysis using Acetylenic Carbinols as Synthons

Khan, M. Wahab,Kundu, Nitya G.

, p. 456 - 458 (2007/10/03)

The reaction of o-iodobenzyl alcohol with various acetylenic carbinols with a terminal acetylenic group in the presence of a palladium catalyst leads to E-1-alkylidene-1,3-dihydroisobenzofurans as the exclusive products which were converted readily to E-3

A Convenient Synthesis of 3-Phenacylidenephthalides

Hori, Kimihiko,Takaishi, Naotake

, p. 1791 - 1792 (2007/10/02)

3-Phenacylidenephthalides were prepared by the dehydration of 2-(1,3-dioxo-3-phenylpropyl)benzoic acids, obtained in turn by the condensation of phthalic anhydride with acetophenones.

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