chemistry

Methoxyamine

Methoxyamine is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Methoxyamine rather than just read about it. In short: Methoxyamine is the organic compound with the formula CH3ONH2. Also called O-methylhydroxylamine, it is a colourless volatile liquid that is soluble in polar organic solvent and in water.

Key takeaways

Methoxyamine belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Methoxyamine to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Methoxyamine from memory before moving on to harder problems.

Reference excerpt

Methoxyamine is the organic compound with the formula CH3ONH2. Also called O-methylhydroxylamine, it is a colourless volatile liquid that is soluble in polar organic solvent and in water. It is a derivative of hydroxylamine with the hydroxyl hydrogen replaced by a methyl group, an alkoxyamine. Alternatively, it can be viewed as a derivative of methanol with the hydroxyl hydrogen replaced by an amino group. It is an isomer of N-methylhydroxylamine and aminomethanol.

Synthesis Methoxyamine is prepared via O-alkylation of hydroxylamine derivatives. For example, it is obtained by O-methylation of acetone oxime followed by hydrolysis of the O-methylated oxime:

(CH3)2CNOCH3 + H2O → (CH3)2CO + H2NOCH3 The other broad method involves methanolysis of hydroxylamine sulfonates:

H2NOSO3− + CH3OH → H2NOCH3 + HSO4− Commercial products are usually the hydrochloride salt.

Reactions Analogous to the behavior of hydroxylamine, methoxyamine condenses with ketones and aldehydes to give imines. Methoxyamine is used as a synthon for NH2+. It undergoes deprotonation by methyl lithium to give CH3ONHLi. This N-lithio derivative is attacked by organolithium compounds to give, after hydrolysis, amines:

H2NOCH3 + CH3Li → LiHNOCH3 + CH4 LiHNOCH3 + RLi → RNHLi + LiOCH3 RNHLi + H2O → RNH2 + LiOH

Uses Methoxyamine has potential medicinal uses. It covalently binds to apurinic/apyrimidinic (AP) DNA damage sites and inhibits base excision repair (BER), which may result in an increase in DNA strand breaks and apoptosis.This agent may potentiate the anti-tumor activity of alkylating agents. Examples of drugs incorporating the methoxyamine unit are brasofensine and gemifloxacin.

References

External links Sigma-Aldrich Methoxyamine Hydrochloride

Illustrations

Worked examples

Example 1 — a first encounter with Methoxyamine

Start with the simplest possible case. Write down what Methoxyamine claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Methoxyamine before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Methoxyamine ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Methoxyamine

In research: Methoxyamine appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Methoxyamine in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Methoxyamine is common in secondary-school and first-year university syllabi. It links to neighbouring topics Foul-smelling chemicals, Hydroxylamines, Methoxy compounds, so understanding it makes those chapters shorter.
In everyday life: Look for Methoxyamine outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Methoxyamine in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Methoxyamine means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Methoxyamine out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Methoxyamine in simple terms?

Methoxyamine is the organic compound with the formula CH3ONH2. Also called O-methylhydroxylamine, it is a colourless volatile liquid that is soluble in polar organic solvent and in water.

Why does Methoxyamine matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Methoxyamine?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Methoxyamine.