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A four-membered ring fuel molecule and its photochemical preparation method

A four-membered ring, fuel technology, applied in chemical instruments and methods, fuels, organic chemistry and other directions, to achieve high industrial application value, mild reaction conditions, high yield effects

Active Publication Date: 2020-08-04
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is a great challenge to synthesize high-density fuels with high density, high calorific value and excellent low-temperature performance.

Method used

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  • A four-membered ring fuel molecule and its photochemical preparation method
  • A four-membered ring fuel molecule and its photochemical preparation method
  • A four-membered ring fuel molecule and its photochemical preparation method

Examples

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Embodiment Construction

[0027] The examples in the following tables are used to further illustrate the present invention, and the examples are only illustrative and not limiting.

[0028] Table 1 is an example of the synthesis reaction of the fuel precursor molecule.

[0029] Table 1 Synthesis reactions of fuel precursor molecules

[0030]

[0031]

[0032]The specific reaction steps are exemplified by Examples 13 and 17 in Table 1. The specific steps are: in a 25mL single-port jacketed glass reactor, add 10g cyclohexenone and 10g cyclohexene (or 10g cyclohexenone and 10g cyclohexene), the acetone of 1% mass fraction, stir under nitrogen Bubble for 0.5h, then seal it, turn on the condensed water, and irradiate with a high-pressure mercury lamp for 5h. Gas chromatography-mass spectrometry was used to analyze the reaction solution, identify the product and calculate the reaction yield. For the cycloaddition reaction (embodiment 13) of cyclopentenone and cyclohexene, the yield of fuel parent mo...

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Abstract

The invention discloses a fuel molecule with a four-membered ring structure. The structure of the fuel molecule is shown in the description, wherein n=1 or 2, and R1, R2, R3, R4, R5 and R6 are independently H or -CH3 or -CH2CH3. The invention also discloses a photochemical preparation method of the fuel molecule with the four-membered ring structure. The fuel molecule with a high-tension four-membered ring structure has the excellent properties of high density, high heat value and low ice point at the same time; the preparation method disclosed by the invention has the advantages of high yield, no need of solvents and mild reaction conditions.

Description

technical field [0001] The invention belongs to the field of liquid fuel propellants, and relates to fuel molecules with high tension four-membered rings and a photochemical preparation method thereof. Background technique [0002] Fuel is the blood of all engines, ensuring the normal operation of the engine. For aerospace vehicles such as airplanes, missiles, and rockets with limited volume, high-density fuels with higher density and higher calorific value are required. When the volume of the aircraft is constant, the greater the density of the fuel, the greater the mass of the fuel carried by the aircraft; the higher the combustion calorific value of the fuel, the greater the energy released by consuming a unit volume of fuel, which is beneficial to improving the performance of the aircraft (including range, speed). and payload) the more beneficial; or under the premise of keeping the performance ratio of the aircraft unchanged, reduce the volume of the fuel tank and deve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C13/547C07C1/207C10L1/04
CPCC07C13/547C10L1/04C10L2200/0407
Inventor 邹吉军谢君健潘伦张香文王莅
Owner TIANJIN UNIV