An innovative synthesis of tertiary hydroxyl thieno[2,3-d]pyrimidinone skeleton: natural-like product from the tandem reaction of o-aminothienonitrile and carbonyl compound

Tertiary hydroxylated thieno[2,3-d]pyrimidinone compounds were synthesized by the cyclocondensation of o-aminothienonitrile and carbonyl compound via PDF conversion and photo-catalytic oxygenation.142