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ChemicalBook CAS DataBase List 2-Methylthiophene
554-14-3

2-Methylthiophene synthesis

13synthesis methods
2-Methylthiophene is commercially produced to 98 wt% purity by VP cyclization.
-

Yield:554-14-3 87 %Chromat.

Reaction Conditions:

with ethanol;cobalt(II) tetrabutylporphyrin;potassium hydroxide at 150; for 1 h;Inert atmosphere;

Steps:

2-Bromo-5-methylthiophene.
2-Bromo-5-methylthiophene (1t)(8 m L, 0.07 mmol), Co(tbp) (2.2 mg, 0.0037 mmol) and KOH(154.7 mg, 2.8 mmol) were added in EtOH (1.0 mL). The mixturewas degassed for three freeze-pump-thaw cycles, purged with N2,and heated to 150C for 1 h. 87% of 2-methylthiophene wasdetected by GC-MS analysis using decalin as internal standard.

References:

Chen, Chen;Zuo, Huiping;Chan, Kin Shing [Tetrahedron,2019,vol. 75,# 4,p. 510 - 517]

2-Methylthiophene Related Search: