Oxidative Cleavage of Vicinal Diols with the Combination of Platinum and Vanadium Catalysts and Molecular Oxygen
作者:Naoyuki Obara、Shota Hirasawa、Masazumi Tamura、Yoshinao Nakagawa、Keiichi Tomishige
DOI:10.1002/cctc.201600153
日期:2016.5.9
good performance for the oxidative cleavage of trans‐1,2‐cyclohexanediol into adipic acid via 2‐hydroxycyclohexanone. The yield of adipic acid reached 90 % in the one‐pot oxidative cleavage of trans‐1,2‐cyclohexanediol. The yield was higher than that obtained in the oxidation of 2‐hydroxycyclohexanone with V catalyst, and the higher yield was due to the low 2‐hydroxycyclohexanone concentration during the
Pt / C和V 2 O 5催化剂的组合对于反式1,2-环己二醇通过2-羟基环己酮氧化裂解为己二酸具有良好的性能。在反式1,2-环己二醇的一锅氧化裂解中,己二酸的收率达到90%。收率高于用V催化剂氧化2-羟基环己酮的收率,较高的收率是由于在反式的一锅法氧化过程中2-羟基环己酮的浓度低-1,2-环己二醇。将具有六元环的环状邻位二醇和具有两个仲OH基的直链邻位二醇分别转化为二羧酸和两种羧酸。在反应过程中,Pt催化剂的活性下降,通过在573 K下用H 2处理用过的催化剂,活性得以部分恢复。即使不进行再生,在长时间的反应中,基于总Pt的周转数也可以达到≈1000。反式1,2-环己二醇的量增加。