106543-40-2

Basic information

• Product Name: 3,3,7,7-Tetramethoxy-trans-tricyclo<4.1.0.0.^2,4>heptan-5-essigsaeure-methylester
• CAS NO: 106543-40-2
• Molecular Weight: 286.325
• Mol File: 106543-40-2.mol

Chemical Properties

• CAS DataBase Reference: 3,3,7,7-Tetramethoxy-trans-tricyclo<4.1.0.0.^2,4>heptan-5-essigsaeure-methylester(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3,7,7-Tetramethoxy-trans-tricyclo<4.1.0.0.^2,4>heptan-5-essigsaeure-methylester(106543-40-2)
• EPA Substance Registry System: 3,3,7,7-Tetramethoxy-trans-tricyclo<4.1.0.0.^2,4>heptan-5-essigsaeure-methylester(106543-40-2)

Safety Data

• Hazardous Substances Data: 106543-40-2(Hazardous Substances Data)

Upstream product

• 23529-83-1 3,3-dimethoxycyclopropene 

Relevant articles and documents

Reactions of Cyclopropenes, VIII. - Transition Metal Catalyzed Cycloadditions of 3,3-Dimethoxycyclopropene

Transition metal catalyzed cyclooligomerisations of 3,3-dimethyloxycyclopropene (1) yielding 2, 4 and 6 as well as cyclocodimerisations of 1 with electron deficient olefins leading to cis/trans-7 (with methyl acrylate) or trans-8 (with dialkyl fumarate or dialkyl maleate) can be performed under mild conditions. - In order to achieve cyclodimerisation yielding 2 phosphane-free palladium(0) catalysts are necessary, e.g. bis(dibenzylideneacetonePd(0) , whereas with phosphane-containing Pd(0) catalysts the cyclotrimer 4 is the main product besides little 2 and the cyclotetramer 6.On the other hand, phosphane-free Ni(0) compounds, such as bis(1,5-cyclooctadiene)nickel , are the best catalyst for the cyclocodimerisations. - The cyclodimer 2 is thermolabile and can be rearranged into chinone tetramethyl acetal (3) by heating to 110 deg C.