Benzoate-based burning rate catalyst containing dinuclear ferrocene group and preparation method of benzoate-based burning rate catalyst

A burning rate catalyst, ferrocene-based technology, applied in chemical instruments and methods, metallocene, organic chemistry, etc., can solve problems such as complex synthesis process, achieve simple operation, good thermal stability, and improve thermal stability. Effect

Active Publication Date: 2019-03-08
SHAANXI NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In 2012, Yuan Yaofeng and others used ferrocene as raw material to obtain propyl-bridged bis-ferrocene cyanonitrile and propyl-bridged bis-ferrocene tetrazole through formylation, condensation, dehydration and other processes, and tested the co

Method used

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  • Benzoate-based burning rate catalyst containing dinuclear ferrocene group and preparation method of benzoate-based burning rate catalyst
  • Benzoate-based burning rate catalyst containing dinuclear ferrocene group and preparation method of benzoate-based burning rate catalyst
  • Benzoate-based burning rate catalyst containing dinuclear ferrocene group and preparation method of benzoate-based burning rate catalyst

Examples

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Example Embodiment

[0024] Example 1

[0025] Prepare bis-(ferrocenylmethyl-1,2,3-triazolylmethyl) terephthalate with the following structural formula

[0026]

[0027] Add 0.2230g (1mmol) di-2-ynyl propyl terephthalate and 0.4931g (2.05mmol) azidomethylferrocene into a 250mL round bottom flask. 2 Add 30 mL of methanol under the atmosphere and stir evenly, then add dropwise 15 mL of an aqueous solution containing 0.077 g (0.3 mmol) of copper sulfate pentahydrate and 15 mL of an aqueous solution containing 0.0604 g (0.3 mmol) of sodium ascorbate, stirring at room temperature for 24 hours, and filtering to obtain the crude product. The crude product was separated by column chromatography to obtain bis-(ferrocenylmethyl-1,2,3-triazolylmethyl) terephthalate, the yield was 82%, and the structural characterization data were: FT-IR(cm -1 ):3431m,3155m,2955w,1715vs,1626m,1383m,1335m,1265vs,1106vs,1044m,933m,801s,718m,490s; 1 H NMR(400MHz, CDCl 3 ): δ8.04(s, 4H), 7.59(s, 2H), 5.43(s, 4H), 5.30(s, 4H), 4.29(s, ...

Example Embodiment

[0028] Example 2

[0029] Preparation of phthalic acid bis-(ferrocenyl methyl-123-triazolyl methyl) ester with the following structural formula

[0030]

[0031] In this example, the di-2-ynyl propyl terephthalate in Example 1 is replaced with equimolar di-2-ynyl propyl phthalate. The other steps are the same as in Example 1. The yield of bis-(ferrocenylmethyl-1,2,3-triazolylmethyl) formate is 79%. The structural characterization data is: FT-IR(cm -1 ): 3427m, 3094m, 2955w, 1723vs, 1626w, 1445m, 1383m, 1272vs, 1120vs, 1058s, 940m, 822s, 753m, 635w, 490s; 1 H NMR(400MHz, CDCl 3 ): δ7.68 (s, 2H), 7.62 (s, 2H), 7.51 (s, 2H), 5.30 (s, 8H), 4.31 (s, 4H), 4.19 (s, 14H).

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Abstract

The invention discloses a benzoate-based burning rate catalyst containing a dinuclear ferrocene group and a preparation method of the benzoate-based burning rate catalyst. A structural formula of theburning rate catalyst is as shown in the specification. The burning rate catalyst provided by the invention is unlikely to migrate or volatilize under natural conditions, is good in thermal stability,and has relatively high formation heat and combustion heat due to the introduction of a nitrogen-rich group; the energy level of a solid propellant is increased when the burning rate catalyst is usedin the solid propellant during combustion; and the burning rate catalyst has a relatively good combustion catalysis effect on main components of the solid propellant, namely ammonium perchlorate andcyclonite. The burning rate catalyst provided by the invention has the advantages that the preparation method is simple to operate, the synthesis cost is low, and the defects of complicated synthesisprocess, high price, high cost and the like of the existing ferrocene and derivatives thereof are overcome.

Description

technical field [0001] The invention belongs to the technical field of solid propellants, in particular to a class of benzoic acid ester burning rate catalysts containing dinuclear ferrocene groups, and a preparation method for the burning rate catalysts. Background technique [0002] Solid propellant (solid gunpowder) has gradually developed as a composite type of energetic material for the purpose of propulsion. It mainly provides driving force for rockets, shells, guns, and missiles, and plays an important role in the development of missile and aerospace industries. It plays a very important role. Its performance plays a decisive role in the combat capability of weapons and missiles, and it occupies an important position in national defense science and technology. In order to ensure the ballistic performance of the solid rocket motor and the stable operation of the motor, most strategies and tactics hope that the burning rate pressure index of the solid propellant is low....

Claims

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Application Information

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IPC IPC(8): C07F17/02C06B23/00
CPCC06B23/007C07F17/02
Inventor 张国防赵凯程文倩姜丽萍邢芳芳许镭张宇
Owner SHAANXI NORMAL UNIV
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