Metal-metal oxide catalysts are robust in selective hydrodeoxygenation of biomass derives. Herein, 1-hexanol in total yield about 76 % is firstly achieved by high selective hydrodeoxygenation of 5-hydroxymethylfurfural over Ni/MCM-41 and Pt-WO/t-ZrO. By controlling the amount ratio of Ni/Ni to 0.46, a 99.9 % yield of 2,5-tetrahydrofurandimethanol was achieved from 5-hydroxymethylfurfural by Ni/MCM-41. Subsequently high yield of 76 % of 1-hexanol was obtained by competing pathways of tandem reactions beginning at SN2 reaction at the epoxy atom of 2,5-tetrahydrofurandimethanol to enol/tautomer intermediates and ending with controllable selective hydrogenation. The reaction mechanism is explored and the reaction-oriented regulation is realized by the additional strong BrÖnsted acid sites generated by electron transfer from W to Pt and the appropriate amount of Pt sites of Pt-WO/t-ZrO, where the ratios of W/W and Pt/Pt are 0.31 and 4.58 respectively. This work provides a new and green method for the synthesis of 1-hexanol and expands the utilization of metal–metal oxide in making value-added products using sustainable feedstocks.

中文翻译：

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Ni/MCM-41和Pt-WOX/t-ZrO2高选择性加氢脱氧合成1-己醇

金属-金属氧化物催化剂在生物质衍生物的选择性加氢脱氧中表现良好。在此，首先通过Ni/MCM-41和Pt-WO/t-ZrO上5-羟甲基糠醛的高选择性加氢脱氧获得了总收率约76%的1-己醇。通过控制Ni/Ni的量比为0.46，利用Ni/MCM-41从5-羟甲基糠醛得到2,5-四氢呋喃二甲醇的收率达到99.9%。随后，通过串联反应的竞争途径，从 2,5-四氢呋喃二甲醇环氧原子上的 SN2 反应开始生成烯醇/互变异构体中间体，并以可控选择性氢化结束，获得了 76% 的高收率 1-己醇。探索了反应机理，并通过W到Pt的电子转移产生的额外强布朗斯台德酸位点和Pt-WO/t-ZrO中适量的Pt位点实现了反应导向调控，其中W/ W和Pt/Pt分别为0.31和4.58。这项工作为合成 1-己醇提供了一种新的绿色方法，并扩大了金属-金属氧化物在使用可持续原料制造增值产品中的利用。