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化学学报
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化学学报 ›› 2003, Vol. 61 ›› Issue (10): 1592-1596. 上一篇    下一篇

研究论文

钛酸丁酯与酐的反应和产物钛氧有机化合物结构分析

陈小泉;古国榜;刘炮彬   

  1. 华南理工大学造纸与环境工程学院;华南理工大学理学院应用化学系
  • 发布日期:2003-10-15

Reaction of Titanium Tetrabutoxide with Acetic Anhydride and Structure Analysis of the Titanyl Organic Compound Products

Chen Xiaoquan;Gu Guobang;Liu Huanbin   

  1. College of Paper & Environment Engineering, South-China University of Technology;Department of Applied Chemistry, College of Science, South-China University of Technology
  • Published:2003-10-15

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999

被引次数

8

钛酯丁酯与乙酐在环已烷中混合加热反应，钛酸丁酯中的烷氧基容易发生二取 代反应，生成溶于有机溶剂的丁氧基乙酸钛和乙酸丁酯；在过量的乙酐存在下，二 取代产生形成两种不同结构的钛氧有机物，乙酸氧钛和丁氧基乙酸氧钛，两种物质 分子中都存在Ti-O-Ti键型的结构，它们不溶于有机溶剂。Ti_2O(OC_4H_9)_2 (OOCCH_3)_4更容易加热分解。

关键词: 钛酸丁酯, 乙酸酐, 环己烷, 热分解, 取代反应

When the mixture of titanium tetrabutoxide [Ti(OC_4H_9)_4] and acetic anhydride [(CH_3CO)_2O] was heated in cyclohexane, two butoxyl groups (OC_4H_9) in Ti(OC_4H_9)_4 were replaced easily so as to form titanium dibutoxide diacetate [Ti (OC_4H_9)_2 (OOCCH_3)_2] and butyl acetate (CH_3COOC_4H_9). In plenty of (CH_3CO)_2O, Ti(OC_4H_9)_2 (OOCCH_3)_2 was transformed into two kinds of titanyl organic compounds with different structure, titanyl diacetate [ TiO (OOCCH_3 )_2 ] and titanyl dibutoxide tetraacetate [Ti_2O(OC_4H_9)_2(OOCCH_3)_4] that all contain Ti-O-Ti structure units. Titanium dibutoxide diacetate could be dissolved in organic solvent but titanyl organic compounds could not. Titanyl dibutoxide tetraacetate was decomposed more easily by heating than titanyl diacetate.

Key words: titanium terabutoxide, ACETIC ANHYDRIDE, CYCLOHEXANE, THERMAL DECOMPOSITION, SUBSTITUTION REACTION

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