20871-40-3 Usage
General Description
1H-Isoindol-1-one, 3-butylidene-2,3-dihydro- is a chemical compound with the molecular formula C13H15NO. It is a derivative of isoindoline and is commonly used in organic synthesis. 1H-Isoindol-1-one, 3-butylidene-2,3-dihydro- is known for its use in the preparation of various pharmaceuticals and agrochemicals due to its versatile reactivity. It is also used as an intermediate in the production of dyes, pigments, and other specialty chemicals. The compound's structure consists of a butylidene group attached to the isoindolone ring, making it a potential building block for the synthesis of various organic compounds.
Check Digit Verification of cas no
The CAS Registry Mumber 20871-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,7 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20871-40:
(7*2)+(6*0)+(5*8)+(4*7)+(3*1)+(2*4)+(1*0)=93
93 % 10 = 3
So 20871-40-3 is a valid CAS Registry Number.
20871-40-3Relevant articles and documents
Novel Lactam Synthesis by Use of a Combination System of Carbonylation and Nitrogenation
Uozumi, Yasuhiro,Kawasaki, Naofumi,Mori, Eiko,Mori, Miwako,Shibasaki, Masakatsu
, p. 3725 - 3727 (2007/10/02)
An amide unit was constructed from aryl halide and titanium-isocyanate complex prepared from TiCl4 under atmospheric pressure of molecular nitrogen and carbon monoxide in the presence of a palladium catalyst.With this combination system of carbonylation and nitrogenation, isoindolinone and quinazolinone derivatives were synthesized from o-halophenyl alkyl ketone in one step.The reaction proceeds through the oxidative addition of enol lactone, generated by palladium-catalyzed carbonylation to o-halophenyl alkyl ketone, to titanium-isocyanate complex.
