作者:Michal Vojtech、Mária Petrušová、Ivan Valent、Božena Pribulová、Ladislav Petruš
DOI:10.1016/j.carres.2011.02.007
日期:2011.5
treatment then provides 76% of D-galactofuranosyl nitromethanes and finally results in the equilibrium of 77% of beta-D-galactopyranosyl nitromethane and 7-9% of three other tautomeric D-galactosyl nitromethanes. Thermal treatment of 7-deoxy-7-nitro-L-glycero-L-galacto-heptitol in boiling water peaks at a 58% content of D-galactofuranosyl nitromethanes and ends in a similar equilibrium mixture of four
由甲醇钠促进的7-脱氧-7-硝基-L-甘油-L-半乳糖-庚醇过乙酸的甲醇分解反应迅速且几乎定量地积累了7-脱氧-6-O-甲基-7-硝基-L-甘油-L-半乳糖-庚醇。延长的处理然后提供76%的D-半呋喃糖基硝基甲烷,并最终导致77%的β-D-半吡喃糖基硝基甲烷和7-9%的其他三种互变异构体D-半乳糖基硝基甲烷达到平衡。在沸水中对7-脱氧-7-硝基-L-甘油-L-半乳糖-庚糖醇进行热处理时,D-半乳糖呋喃糖基硝基甲烷的含量为58%时达到峰值,并以四个D-半乳糖基互变异构体的相似平衡混合物终止。后一种转换的相关动力学参数是通过使用非线性最小二乘Marquardt-Levenberg算法的曲线拟合确定的。