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4-Nitro-benzoic acid-(4-fluoro-benzyl ester) is a chemical compound with the molecular formula C14H10FNO4. It is an ester derivative of 4-nitrobenzoic acid, where the carboxylic acid group is esterified with 4-fluorobenzyl alcohol. 4-nitro-benzoic acid-(4-fluoro-benzyl ester) is characterized by the presence of a nitro group (-NO2) at the para position of the benzene ring in the benzoic acid moiety and a fluorine atom (-F) at the para position of the benzene ring in the benzyl group. It is a white crystalline solid and is used in the synthesis of various pharmaceuticals and organic compounds due to its unique structural features. The compound's properties, such as its reactivity and solubility, can be influenced by the presence of the nitro and fluoro substituents, making it a valuable intermediate in organic chemistry.

845-44-3

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845-44-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 845-44-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,4 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 845-44:
(5*8)+(4*4)+(3*5)+(2*4)+(1*4)=83
83 % 10 = 3
So 845-44-3 is a valid CAS Registry Number.

845-44-3Downstream Products

845-44-3Relevant academic research and scientific papers

Vitamin B1-catalyzed aerobic oxidative esterification of aromatic aldehydes with alcohols

Chu, Xue-Qiang,Ge, Danhua,Luo, Xin-Long,Xu, Pei,Yu, Zi-Lun

supporting information, p. 30937 - 30942 (2021/11/19)

A straightforward aerobic oxidative esterification of aryl aldehydes with alcohols has been developed for the synthesis of substituted esters by employing vitamin B1 as a cost-effective, metal-free, and eco-friendly NHC catalyst. Air is used as a green terminal oxidant. The reaction is a useful addition to the existing NHC-catalytic oxidative esterification.

Purification of fluorous Mitsunobu reactions by liquid-liquid extraction

Curran, Dennis P.,Bajpai, Reena,Sanger, Elizabeth

, p. 1621 - 1624 (2007/10/03)

Solvent tuning and partition coefficient measurements have identified suitable reagent and solvent combinations for the purification of fluorous Mitsunobu reaction products. The crude reaction mixtures are partitioned between 2/1 HFE-7100/FC-72 and DMF/10% water to provide reagent (fluorous) and product (organic) fractions.

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