
TY  - JOUR
A1  - Musgrave, RP 
A1  - Jacobsen, NW 
A1  - Bourne, G 
A1  - Kennard, CHL 
A1  - Smith, G 
A1  - Mak, TCW 
T1  - Cycloaddition Reactions of 3-Dimethylamino-1-methyl-1,2,4-triazinium-5-olates With Dimethyl Acetylenedicarboxylate
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1995
VL  - 48
IS  - 6
SP  - 1175
EP  - 1181
KW  - 
UR  - https://doi.org/10.1071/CH9951175 
N2  - The cycloaddition reactions of some 3-dimethylamino-1-methyl-1,2,4-triazinium-5-olates (1) with dimethyl  acetylenedicarboxylate ( dmad ) were studied. The products in all cases were found tobe dimethyl 4-dimethylamino-1-methyl-6-oxo-1,3a,6,6a-tetrahydropyrrolo[3,4-c]pyrazole-3,3a-dicarboxylate derivatives (2). The structure determinations were carried out by 1H and 13C n.m.r. and mass spectrometry, and for one derivative by single-crystal X-ray diffractometry. The mechanism of the reaction is also discussed. 
ER  -

