123433-15-8

Basic information

• Product Name: 4-chloro-3',4'-dihydro-5'-methylspiro-1,4'-dione
• Synonyms: 4-chloro-3',4'-dihydro-5'-methylspiro-1,4'-dione
• CAS NO: 123433-15-8
• Molecular Weight: 274.704
• Mol File: 123433-15-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-chloro-3',4'-dihydro-5'-methylspiro-1,4'-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 4-chloro-3',4'-dihydro-5'-methylspiro-1,4'-dione(123433-15-8)
• EPA Substance Registry System: 4-chloro-3',4'-dihydro-5'-methylspiro-1,4'-dione(123433-15-8)

Safety Data

• Hazardous Substances Data: 123433-15-8(Hazardous Substances Data)

Upstream product

• 63446-78-6 (E)-2-methyl-1,3-bis(trimethylsiloxy)-buta-1,3-diene 
• 6655-90-9 4-chloronaphthalene-1,2-dione 

Relevant articles and documents

Reactions of polar dienes with o-quinones

The behaviour of various types of polar dienes towards halogenated ortho quinones has been investigated in a number of representative cases.As compared to the commonly used para analogues, o-quinones provide a wide range of products that indicate a keener response to the nature, number, and position of substituents on both reactants. 3-Halogenated-o-naphthoquinones 1 and 2 react smoothly with a representative vinologous ketene acetal 3, vinylketene acetals 4 and 5, and a monooxygenated diene 6 to provide variously substituted phenanthrenequinones 7-11.Only monooxygenated dienes on the other hand add to o-benzoquinones 14-16 and give convenient syntheses of the corresponding o-naphthoquinones 18-20.Key words: cycloaddition, o-naphthoquinones, phenanthrenequinones, regiospecificity.