Method for dehydrogenation by positioning through nuclear magnetic resonance

A nuclear magnetic resonance and dehydrogenation technology, applied in the direction of organic dehydrogenation, chemical instruments and methods, can solve problems such as difficult synthesis

Inactive Publication Date: 2010-06-16
张建旺
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Problems solved by technology

[0007] At present, many substances needed by human beings (such as new substances that cannot be found in nature and are difficult to synthesize artificially, medicines for repairing genes, medicines for treating cancer and AIDS, health products that improve human immunity and prolong life), only rely on existing The chemical reaction method is difficult to synthesize

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  • Method for dehydrogenation by positioning through nuclear magnetic resonance

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[0018] The following examples further illustrate the present invention:

[0019] A method for localizing dehydrogenation by nuclear magnetic resonance, wherein the first step uses 1 H or 13 C nuclear magnetic resonance instrument accurately determines the δ of known organic compounds H or delta C value, get the correct 1 H-NMR spectrum or 13 A kind of method of C-NMR spectrum is to carry out by following method step:

[0020] Add known amount of tallow fatty acid 1 H or 13 In the sample tube of C nuclear magnetic resonance instrument, adopt known conventional method to measure its δ H or delta C value, get the correct 1 H-NMR spectrum or 13 C-NMR spectrum.

[0021] first step with 1 H or 13 C nuclear magnetic resonance instrument accurately determines the δ of known organic compounds H or delta C value, get the correct 1 H-NMR spectrum or 13 Another method of C-NMR spectrum is the method according to the following steps:

[0022] Add a known amount of any oth...

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Abstract

The invention discloses a method for dehydrogenation by positioning through nuclear magnetic resonance, and belongs to the technical field of organic chemical reactions. The method is expected to open a new way for the organic chemical reactions, new substance discoveries and new medicament synthesis. The adopted technical scheme is that: the method for dehydrogenation by positioning through the nuclear magnetic resonance comprises the following steps of: firstly, accurately measuring a Delta H or Delta C of a known organic compound so as to obtain a correct 1H-NMR or 13C-NMR spectrum; secondly, finding a position of an atom to be dehydrogenated according to the 1H-NMR or 13C-NMR spectrum so as to determine a corresponding electromagnetic radiation frequency v and a corresponding external magnetic field H0; thirdly, adding the known organic compound and a dehydrogenation catalyst in a sample tube so as to fully enhance the irradiation according to the determined electromagnetic radiation v and the corresponding fixed external magnetic field H0; and, fourthly, separating and purifying the dehydrogenated organic compound. The method is applied to the technical field of the organic chemical reactions.

Description

technical field [0001] The invention discloses a method for positioning dehydrogenation by nuclear magnetic resonance, belonging to the technical field of organic chemical reactions. Background technique [0002] Nuclear magnetic resonance spectrum (NMR spectrum) is the signal generated by the atomic nucleus with magnetic moment absorbing electromagnetic radiation under the action of a strong external magnetic field and transitioning from a lower spin energy level to a higher spin energy level. It is a very important method for determining the structure of organic compounds. But so far, only atomic nuclei whose spin quantum number is equal to 1 / 2 can be used by people, and the nuclear magnetic resonance signals that are often used by people are 1 H and 13 C (their nuclear magnetic resonance principle is the same). When the hydrogen nucleus (proton) spins, a magnetic moment will be generated by the spin. When there is no magnetic field, the direction of the nuclear magneti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07B35/04
Inventor 张建旺张立航李艳平
Owner 张建旺
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