3- Methylenecyclobutane-1,2-dicarBOXYLIC ACID, DIMETHYL ESTER

METHYLENECYCLOBUTANE-l,2-DICARBOXYLATE (3-MethylenecycIobutane-l,2-dicarboxylic acid, dimethyl ester)... 

Since 3-methylenecyclobutane-l,2-dicarboxylic anhydride is easily converted to 3-methyl-2-cydobutene-l,2-dicarboxylic acid, it is an intermediate to a variety of cyclobutenes. The dimethyl ester of 3-methylenecyclobutane-l,2-dicarboxylic acid is also a versatile compound on pyrolysis it gives the substituted allene, methyl butadienoate, and on treatment with amines it gives a cyclobutene, dimethyl 3-methyl-2-cyclobutene-l,2-di-carboxylate. ... 

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See also in sourсe #XX -- [ , ]

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