Synthesis of 1H-Thieno[3,4-c]pyrazoles, Thieno[3,4-b]furans, Selenolo[3,4-b]furans and Pyrrolo[3,4-d]thiazoles

Article abstract of DOI:10.1002/jhet.5570350114

Starting from the readily available aryl 2-methyl-5-phenyl-3-furyl ketones, 5-methyl-1H-1-phenylpyra- zole-4-yl ketones and 4-methyl-2-phenyl-5-thiazolylcarboxaldehyde, a series of 2-phenyl-4-arylthieno[3,4-b]-furan, 2-phenyl-4-(p-methoxyphenyl)selenolo[3,4-b]furan, 4-aryl-1H-1-phenylthieno[3,4-c]pyrazole and 5-benzyl-2-phenylpyrrolo[3,4-d]thiazole were prepared in high yield.