2- Methylene-l ,3-propanediyl

Versatile [3 + 2]-cydoaddition pathways to five-membered carbocydes involve the trimethylenemethane (= 2-methylene-propanediyl) synthon (B.M. Trost, 1986). Palladium(0)-induced 1,3-elimination at suitable reagents generates a reactive n -2-methylene-l,3-propa-nediyl complex which reacts highly diastereoselectively with electron-deficient olefins. The resulting methylenecyclopentanes are easily modified, e. g., by ozonolysis, hydroboration etc., and thus a large variety of interesting cyclopcntane derivatives is accessible. 

CAS 2227,- 2-1 , EINECS/ELINCS 218-741-5 Synonyms Acrylic acid 3-acryloyloxy-2,2-dimethylpropyl ester Dimethylolpropane diactylate 2,2-Dimethylpropane-1,3-diacr te 2,2-Dimethyl-1,3-propanedk)l diactylate 2,2-Dimethyl-1,3-propanediol diester acrylic acid 2,2-Dimethyltrimethylene acrylate 2,2-Dimethyltri-methylene ester acrylic acid NPGDA 2-Propenoic acid-2,2-dimethyl-1,3-propanediyl ester ClassiTication Nonaromatic ester Empirical C H,60,... 

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