Preparation method of n-hexyl carborane

A technology of n-hexyl carborane and bromomethyl carborane, which is applied in the field of preparation of n-hexyl carborane, can solve the problems such as high price of 1-octyne, and achieves reduction of production cost, small steric hindrance, and total cost reduction. high yield effect
CN104017010AActive Publication Date: 2014-09-03XIAN MODERN CHEM RES INST
2 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN MODERN CHEM RES INST
Publication Date
2014-09-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a preparation method of n-hexyl carborane, and the preparation method comprises the following steps: by taking decahydro-decaborate ditetraethylammonium as a raw material and ethyl thioether as a reaction raw material and a solvent, reacting the materials in the presence of a concentrated sulfuric acid used as a catalyst, so that a dodecahydrogen-decabo-diethyl thioether complex is obtained; by taking methylbenzene as a solvent, reacting the dodecahydrogen-decabo-diethyl thioether complex with propargyl bromide, so that brooethyl carborane is obtained; by taking tetrahydrofuran as a solvent, reacting the brooethyl carborane with a grignard reagent of bromopentane, so that n-hexyl carborane is obtained. The method is cheap and easily available in raw materials, relatively high in yield and low in preparation cost, and the method disclosed by the invention is applied to the preparation of n-hexyl carborane.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for preparing carborane, in particular to a method for preparing n-hexylcarborane. Background technique

[0002] Carborane derivatives with a closed cage structure have always been concerned by aviation and rocket workers because they inherit the high combustion calorific value of borohydrides and overcome the latter’s shortcomings such as high chemical activity and high toxicity. The one with the most and high practical value is n-hexylcarborane. According to reports, the U.S. Department of the Army uses n-hexylcarborane as a burning rate regulator in the formulation of the alternative butylated hydroxyl propellant specially developed for the "Guardian" anti-ballistic missile system, and its addition is 13.10%, so that the propellant can obtain It has a high burning rate of 144.78mm / s (13.73MPa) and a high specific impulse of 2400N.s / Kg, and has good overall comprehensive performance.

[0003] Due to the excellent p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More