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6850277 
Journal Article 
REDUCTION OF SUBSTITUTED ISOPROPYLIDENE METHYLENEMALONATES USING BOROHYDRIDE EXCHANGE RESIN 
Kanade, AS; Kanade, AS; Sagar, AD; Sagar, AD; Salunkhe, MM; Salunkhe, MM 
1993 
1 
Indian Journal of Chemistry. Section B
ISSN: 0376-4699
EISSN: 0975-0983 
32 
8 
896-897 
WOS:A1993MJ97700024 
Substituted isopropylidene methylenemalonates (Knoevenagel type products) (1-7) derived from Meldrum's acid (2,2-dimethyl-1,3-dioxan-4,6-dione) are readily reduced by borohydride exchange resin under mild reaction conditions to give 8-14 in high yields and in a state of high purity. The advantage of this method lies in its simplicity of performance, high yield of pure products and regeneration of resin to its initial activity in a single step.<