DVDPA

AcronymDefinition
DVDPADelaware Valley Doberman Pinscher Assistance
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The yield of the target product DVDPA is above 80%.
In conclusion, dimethyl 4-(2-(2,6-bis(methoxycarbonyl) pyridine-4-yl)vinyl)pyridine-2,6-dicarboxylate (DVDPA) was synthesized starting from dimethyl 4-(chloromethyl) pyridine-2,6-dicarboxylate (CMDPA) catalyzed by ionic liquid [bmim]OH.
Table 1: Effects of [bmim]OH/solvent on the synthesis of DVDPA. Entry Catalyst/solvent Yield (%) (b) (1) [bmim]OH/[H.sub.2]O 62 (2) [bmim]OH/C[H.sub.3] OH 83 (3) [bmim]OH/C[H.sub.3]CN 80 (4) [bmim]OH/C[H.sub.2][Cl.sub.2] 71 (5) [bmim]OH/None 60 Reaction conditions: CMDPA (25 mmol), tetrahydrofuran 60 ml, [bmim]OH (2.5 mmol), 60[degrees]C, 40 min.