117844-99-2

Upstream product

• 77942-13-3 2',4'-dimethoxy-3'-methylpropiophenone 
• 117844-89-0 2-Bromo-1-(2,4-dimethoxy-3-methyl-phenyl)-propan-1-one 
• 17356-08-0 thiourea 

Downstream Products

• 117845-03-1 N-[4-(2,4-Dimethoxy-3-methyl-phenyl)-5-methyl-thiazol-2-yl]-benzamide 
• 117845-01-9 N-[4-(2,4-Dimethoxy-3-methyl-phenyl)-5-methyl-thiazol-2-yl]-acetamide 

Relevant academic research and scientific papers

Acid Catalysed Condensation of Isoprene with Hydroxypropiophenones: Synthesis of 2,2-Dimethylchromans and Some New 2-Amino- and 2-Mercapto-4-aryl-5-methylthiazoles

Condensation of hydroxypropiophenones with isoprene in the presence of orthophosphoric acid gives 3,4-dihydro-2,2-dimethylchromans (4a, 4b, 17 and 18) which have been used for the synthesis of some 2-amino-(7a, 7b, 12a and 12b) and 2-mercapto- (10a, 10b,