146607-40-1

Upstream product

• 121-33-5 vanillin 
• 2538-98-9 4-isopropyloxy-3-methoxybenzaldehyde 
• 100-44-7 benzyl chloride 
• 86636-03-5 4-isopropoxy-3-methoxyphenol 

Downstream Products

• 139386-31-5 2-hydroxy-5-isopropoxy-4-methoxybenzaldehyde 
• 776-86-3 isoscopoletin 
• 68468-11-1 5-Formyl-6-hydroxy-7-methoxycoumarin 
• 146607-41-2 2-benzyloxy-5-isopropoxy-4-methoxybenzaldehyde 

Relevant academic research and scientific papers

Synthetic studies on naturally occurring coumarins. II. Synthesis of 6,7-dimethoxy- and 7,8-dimethoxy-5-[(E)-3-oxo-1-butenyl]coumarins

In connection with studies on the structure elucidation of the so-called Reisch's coumarin isolated from Toddalia asiatica, syntheses of two coumarins (4 and 5) were accomplished via the routes shown in Charts 2 and 3, respectively. Melting points and NMR data of the synthesized coumarins (4 and 5) and of related coumarins (5-methoxysuberenon, toddalenone, and Reisch's coumarin) are given in Table I, suggesting that so-called Reisch's coumarin might be 4.