82834-45-5 Usage
General Description
2-Bromo-5-methyl-3-nitrothiophene is a chemical compound with the molecular formula C5H4BrNO2S. It is a derivative of thiophene, a five-membered heterocyclic compound containing a sulfur atom. 2-BROMO-5-METHYL-3-NITRO-THIOPHENE is a yellow solid with a molecular weight of 223.06 g/mol. It is used as an intermediate in the synthesis of various pharmaceuticals and agrochemicals. Additionally, 2-Bromo-5-methyl-3-nitrothiophene can also be used as a building block in the production of other organic compounds. This chemical compound has potential applications in the fields of medicinal chemistry and material science due to its unique structure and reactivity.
Check Digit Verification of cas no
The CAS Registry Mumber 82834-45-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,8,3 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 82834-45:
(7*8)+(6*2)+(5*8)+(4*3)+(3*4)+(2*4)+(1*5)=145
145 % 10 = 5
So 82834-45-5 is a valid CAS Registry Number.
InChI:InChI=1/C5H4BrNO2S/c1-3-2-4(7(8)9)5(6)10-3/h2H,1H3
82834-45-5Relevant articles and documents
Kinetics of the Reactions of Some 5-Bromo-2-nitro-3-R-thiophens, 3,4-dibromo-2-nitro-5-R-thiophens, 3-Bromo-2-nitro-5-R-thiophens, and 2-Bromo-3-nitro-5-R-thiophens with Nucleophiles in Methanol
Consiglio, Giovanni,Spinelli, Domenico,Gronowitz, Salo,Hoernfeldt, Anna-Britta,Maltesson, Britta,Noto, Renato
, p. 625 - 630 (2007/10/02)
The reactivity of some 5-bromo-2-nitro-3-R-thiophens (Ia-g; R=H, Me, Et, Prn, n-hexyl, Pri, and But), 3,4-dibromo-2-nitro-5-R-thiophens (IIa and b; R=H and Me), 3-bromo-2-nitro-5-R-thiophens (IIIa and b; R=H and Me), and 2-bromo-3-nitro-5-R-thiophens (IVa and b; R=H and Me) with amines and sodium benzenethiolate has been studied in methanol at various temperatures.Piperidinodebromination of compounds (Ia and c) has also been studied in benzene, in dioxan, and in dioxan-water (60:40 and 10:90).Independent of the position of the alkyl group (meta or para with respect to the leaving bromine), an unexpected alkyl activation has been observed, which represents a further exception to the electron-releasing behaviour of alkyl groups.