Condensation of the carbanion derived from methyl (E)-3-methoxy-2-methylprop-2-enoate with aldehydes provides a one step synthesis of 4-substituted methyl 2-methyltetronates, which are transformed into the free acids and 4-alkylidene derivatives.
衍生自(E)-3-甲氧基-2-甲基丙-2-烯酸甲酯的碳负离子与醛的缩合反应可一步合成4-取代的2-甲基四羟甲基酯,并将其转化为
游离酸和4-亚烷基衍
生物。