the answer is 1 if your on novanet
thiophene is very slightly basic....( almost neutral)....
C4H4S
on the basis of molecular simulation the self diffusion coefficient of thiophene comes out to be 3.274e-9 m2/s
The molar mass of thiophene, which has a chemical formula of C₄H₄S, can be calculated by adding up the atomic masses of each element present. The molar mass of thiophene is approximately 84.14 g/mol.
thiophene is very slightly basic
Because the electronegativity of oxygen is the highest among others. That is, oxygen doesnt want to share its electron pairs to be delocalized over the molecule. In other words, it is the direct result of electron availability which is the highest in furan.
Although thiophene is a heterocyclic conjugated diene with a thiol electron withdrawing group, it displays aromatic properties. This compound would definitely not undergo a diels-alder reaction since the aromatic stabilization of this molecule makes diel's alder chemistry energetically unfavorable.
Thiophene is less basic than furan because sulfur is less electronegative than oxygen, making the lone pair on the sulfur less available for donation to a proton. Additionally, the sulfur atom is larger in size compared to oxygen, which makes the lone pair less localized and less available for protonation.
Electrophilic substitution occurs in furan, thiophene, and pyrrole because these compounds have a lone pair of electrons on the heteroatom (oxygen, sulfur, or nitrogen), making them nucleophilic and reactive towards electrophiles. The aromaticity of these compounds is also maintained during the substitution reaction, making them favorable candidates for electrophilic substitution.
Raymond Leger has written: 'The electroreduction of halogenated thiophene, furan and pyrrole' 'The electrochemistry of benzyl triethyl ammonium nitrate'
Furan is more reactive than Pyrrole because it is less stable as it contains an extra lone pair than that of pyrrole, which is available for attack of an acid, results in the destabilization of the ring.
The functional groups present in lidocaine are an amide group, an aromatic ring, and a tertiary amine group. These groups are important for the anesthetic properties and overall structure of lidocaine.