Theoretical and experimental study on the reactivity of methyl dichlorobenzoates with sulfur-centered nucleophiles by electron transfer reactions
作者:Jorge G. Uranga、Juan P. Montañez、Ana N. Santiago
DOI:10.1016/j.tet.2011.10.107
日期:2012.1
Reactions of methyl 2,5-dichlorobenzoate or methyl 3,6-dichloro-2-methoxybenzoate with sulfur-centered nucleophiles gave mono- and disubstitution products, respectively through SRN1 mechanism in liquid ammonia. Products obtained could be potential herbicides less toxic to the environment. Theoretical studies explained the reactivity observed considering geometries, and spin densities of radical anions
2,5-二氯苯甲酸甲酯或3,6-二氯-2-甲氧基苯甲酸甲酯与以硫为中心的亲核试剂的反应分别通过S RN 1机理在液氨中得到单解和分解性产物。获得的产品可能是对环境毒性较小的潜在除草剂。理论研究解释了考虑到几何形状以及自由基阴离子的自旋密度和形成的自由基阴离子解离的势能表面的反应性。