4780-96-5

Upstream product

• 103-82-2 phenylacetic acid 
• 81-84-5 1,8-Naphthalic anhydride 
• 78013-99-7 4-naphthal-2-phenyl-5-oxazolone 
• 100-52-7 benzaldehyde 
• 78013-98-6 α-naphthal-γ-phenyl-crotonolactone 
• 82776-90-7 3-[1-Naphthalen-1-yl-meth-(E)-ylidene]-3H-benzo[de]isochromen-1-one 

Downstream Products

• 55994-35-9 2-phenyl-2,3-dihydro-1H-1,3-phenalenedione 
• 119149-54-1 5',6',7',8'-tetrabromo-3'-phenyl-spiro[benz[de]isochromene-1,2'-benzo[1,4]dioxin]-3-one 
• 50684-38-3 3-[1-Phenyl-meth-(E)-ylidene]-2-p-tolyl-2,3-dihydro-benzo[de]isoquinolin-1-one 
• 50415-18-4 2-phenyl-3-benzylidene-2,3-dihydrobenzisoquinolin-1(2H)-one 
• 50684-36-1 3-[1-Phenyl-meth-(E)-ylidene]-2-o-tolyl-2,3-dihydro-benzo[de]isoquinolin-1-one 
• 50415-19-5 2-benzyl-3-benzylidene-2,3-dihydrobenzisoquinolin-1(2H)-one 
• 79148-71-3 thiobenzalnaphthalide 
• 78014-03-6 4-benzyl-1(2H)-oxonaphtho<1,8-de><1,2>diazepine 

Relevant academic research and scientific papers

A complete 1H and 13C NMR data assignment for 3-phenylmethylene-1H,3H-naphtho-[1,8-c,d]-pyran-1-one

Complete assignments of the 1H and 13C NMR chemical shifts for 3-phenylmethylene-1H,3H-naphtho-[1,8-c,d]-pyran-1-one were done by means of one- and two-dimensional NMR techniques, including 1H- 1H COSY, HMQC and

Polycyclic Compounds: Part I - Synthesis and Reactions of 2-Aryl-3-hydroxyphenalen-1-ones

The reaction of naphthalic anhydride (I) with arylacetic acids results in the formation of 3-hydroxy-2-arylphenalen-1-ones (IIa, IIb) and 3-arylmethylene-1H,3H-naphthopyran-1-ones (IVa, IVb).Complete spectral evidence in favour of structure (IIa)

Reactions of Naphthalic Anhydride with β-Benzoylpropionic Acid and Hippuric Acid

Naphthalic anhydride undergoes condensation with β-benzoylpropionic acid and hippuric acid to give α-naphthal-γ-phenyl-crotonolactone (I) and 4-naphthal-2-phenyl-5-oxazolone (II), respectively.Condensation of I and II with aldehydes gives the corresponding arylidenenaphthalides (V) while with hydrazine hydrate and benzylamine, aminonaphthalimide (III) and N,N'-dibenzylnaphthalamide (IV) respectively are formed.