
TY  - JOUR
A1  - Dalton, LK 
A1  - Elmes, BC 
T1  - 2-Methylenebutyrolactones. I. Monoaryl derivatives
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1972
VL  - 25
IS  - 3
SP  - 625
EP  - 632
KW  - 
UR  - https://doi.org/10.1071/CH9720625 
N2  - The Mannich reaction of a dialkylamine and formaldehyde with 2-carboxy-   butyrolactones leads directly to isolable 2-methylenebutyrolactones. It is suggested that this happens through a concerted decarboxylation-elimination mechanism. 2-Methylene-3- and -4-phenylbutyrolactones and their cysteine addition products, and 3-methylene-2-oxo-cis-2,3,3a,4,5,9b-hexhydronaphtho[1,2-b]furan and its di-methylamine addition product have been prepared. 3-Oxo-2,3,4,4a,6,6-hexahydro-naphtho[l,2-c]pyridazine has also been synthesized. 
ER  -

