172845-77-1

Basic information

• Product Name: 2-(2-Phenyl-1λ⁴-naphtho[1,8-de][1,3]dithiin-1-ylidene)-malonic acid diethyl ester
• Synonyms: 2-(2-Phenyl-1λ⁴-naphtho[1,8-de][1,3]dithiin-1-ylidene)-malonic acid diethyl ester
• CAS NO: 172845-77-1
• Molecular Weight: 438.568
• Mol File: 172845-77-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-(2-Phenyl-1λ⁴-naphtho[1,8-de][1,3]dithiin-1-ylidene)-malonic acid diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(2-Phenyl-1λ⁴-naphtho[1,8-de][1,3]dithiin-1-ylidene)-malonic acid diethyl ester(172845-77-1)
• EPA Substance Registry System: 2-(2-Phenyl-1λ⁴-naphtho[1,8-de][1,3]dithiin-1-ylidene)-malonic acid diethyl ester(172845-77-1)

Safety Data

• Hazardous Substances Data: 172845-77-1(Hazardous Substances Data)

Upstream product

• 209-22-3 1,8-naphthalenedisulfide 
• 100-52-7 benzaldehyde 
• 25079-77-0 naphthalene-1,8-dithiol 
• 5256-74-6 1,3-diethyl 2-diazopropanedioate 
• 156462-92-9 2-phenylnaphtho<1,8-de><1,3>dithiin 

Downstream Products

• 209-22-3 1,8-naphthalenedisulfide 
• 5292-53-5 diethyl benzalmalonate 
• 172845-81-7 2,3-dihydro-2,2-bis(ethoxycarbonyl)-3-phenylnaphtho<1,8-ef><1,4>dithiepin 

Relevant articles and documents

Mechanism for photodecomposition of naphtho[1,8-de][1,3] dithiin-1-bis(ethoxycarbonyl)methylides

Naphtho[1,8-de][1,3]dithiin-1-bis(ethoxycarbonyl)methylides (3) were prepared by the reaction of naphtho[1,8-de]dithiins with diethyl diazomalonate in the presence of copper acetylacetonate. The sulfonium ylides 3 underwent photo-rearrangement giving olefin 5 quantitatively together with naphthalene-1,8-dithiole.