883898-62-2

Upstream product

• 51420-59-8 4-formyl-3-hydroxynaphthoic acid methyl ester 
• 883898-58-6 methyl 4-formyl-3-methoxy-2-naphthoate 
• 883898-61-1 2-oxo-1,2-diphenylethyl 4-formyl-3-methoxy-2-naphthoate 

Downstream Products

• 883898-63-3 3-(4,5-diphenyl-1,3-oxazol-2-yl)-2-hydroxy-1-naphthaldehyde 

Relevant academic research and scientific papers

Spiropyrans and spirooxazines. 3. Synthesis of photochromic 5′-(4,5-diphenyl-1,3-oxazol-2-yl)-spiro[indoline-2,3′-naphtho[2,3-b] pyran]

The reaction of 2-hydroxy-3-(4,5-diphenyl-1,3-oxazol-2-yl)-1-naphthaldehyde with 1,2,3,3-tetramethyl-3H-indolium perchlorate afforded photochromic spiro[indoline-2,3′-naphthopyran] containing a 4,5-diphenyloxazole group in position 5′ of the naphthopyran