作者:A. J. Kadam、U. V. Desai、R. B. Mane
DOI:10.1002/(sici)1099-1344(199909)42:9<835::aid-jlcr244>3.0.co;2-r
日期:1999.9
Knoevenagel condensation of Meldrum's acid (1) with benzaldehyde, anisaldehyde, furfural, cinnamaldehyde and acetone gave the corresponding alkylidene derivatives (3) which were reduced with sodium borohydride to yield alkyl Meldrum's acids (4). Reaction of (4) with pyridine-D2O at high temperature furnished α-dideuterated acids (6). The reduction of alkylidene derivatives (3) with sodium borodeuteride
Meldrum 酸 (1) 与苯甲醛、茴香醛、糠醛、肉桂醛和丙酮的 Knoevenagel 缩合得到相应的亚烷基衍生物 (3),该衍生物用硼氢化钠还原得到烷基 Meldrum 酸 (4)。(4) 与吡啶-D2O 在高温下反应得到 α-二氘代酸 (6)。亚烷基衍生物 (3) 用硼氘化钠还原产生 β-氘代烷基 Meldrum 酸 (7),水解和脱羧产生 β-氘代酸 (9)。通过用吡啶-D2O 水解和脱羧 (7) 制备 α,α,β-三氘酸 (11)。版权所有 © 1999 John Wiley & Sons, Ltd.