88264-00-0

Upstream product

• 4892-02-8 Methyl thiosalicylate 
• 88263-80-3 1-Phenyl-3-(2-mercapto-benzoyl)-pyrrolidinon-2 
• 4641-57-0 1-phenylpyrrolidin-2-one 
• 88263-88-1 2,3-Dihydro-1-phenyl-benzothiopyrano<4,3-b>pyrrol-4-on 

Downstream Products

• 88264-04-4 1-Phenyl-2-(2-mercaptophenyl)-pyrrol-3-carbonsaeure 

Relevant academic research and scientific papers

Cyclisation of α-(2-mercaptobenzoyl)- and α-(2-aminobenzoyl)lactames; Synthesis of benzothiopyranopyrrolinones and pyrrolinoquinolinones

Compounds 8a, 8b, 8d, 8e and 8f are obtained by heating the mercaptobenzoyl- or methylaminobenzoyl-lactames 6a, 6b, 6d, 6e and 6f. With pyridine HCl removal of the pyrroline N-methyl group takes place under formation of 8c and 8g. Cyclisation of the acyll