34042-95-0 Usage
Uses
Used in Pharmaceutical Industry:
3-Bromothiophene-2-carboxaldehyde diethyl acetal is used as a key intermediate in the synthesis of drugs. Its unique chemical properties and versatile nature allow it to be incorporated into the development of a wide range of pharmaceutical products.
Used in Agrochemical Industry:
3-Bromothiophene-2-carboxaldehyde diethyl acetal is also used as an intermediate in the production of agrochemicals, such as pesticides and dyes. Its stability and reactivity make it a valuable component in the creation of these products, contributing to their effectiveness and performance.
Check Digit Verification of cas no
The CAS Registry Mumber 34042-95-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,0,4 and 2 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 34042-95:
(7*3)+(6*4)+(5*0)+(4*4)+(3*2)+(2*9)+(1*5)=90
90 % 10 = 0
So 34042-95-0 is a valid CAS Registry Number.
InChI:InChI=1/C9H13BrO2S/c1-3-11-9(12-4-2)8-7(10)5-6-13-8/h5-6,9H,3-4H2,1-2H3
34042-95-0Relevant academic research and scientific papers
Regiocontrolled Halogen Dance of Bromothiophenes and Bromofurans
Mari, Daichi,Miyagawa, Naoki,Okano, Kentaro,Mori, Atsunori
, p. 14126 - 14137 (2018/11/23)
The LDA (lithium diisopropylamide)-promoted regiocontrolled halogen dance of α-bromothiophenes and α-bromofurans is described. Bromothiophenes bearing a diethyl acetal moiety undergo selective deprotonation at the β-position adjacent to the bromo group. In contrast, oxazoline, ester, and amide groups act as directing groups in the initial lithiation step to generate a carbanion at the β-position neighboring the directing group to exclusively give the other regioisomer. These results can be applied to the regiocontrolled halogen dance of bromofuran derivatives.
