science

Imidazolidinone

Imidazolidinone is a science 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 Imidazolidinone rather than just read about it. In short: Imidazolidinones are a class of 5-membered ring heterocycles structurally related to imidazolidine. Imidazolidinones feature a saturated C3N2 nucleus, except for the presence of a urea or amide functional group in the 2 or 4 positions. 2-Imidazolidinones The 2-imidazolidinones are cyclic derivatives of urea. 1,3-Dimethyl-2-imidazolidinone is a polar solvent and Lewis base.

Key takeaways

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

Reference excerpt

Imidazolidinones are a class of 5-membered ring heterocycles structurally related to imidazolidine. Imidazolidinones feature a saturated C3N2 nucleus, except for the presence of a urea or amide functional group in the 2 or 4 positions.

2-Imidazolidinones

The 2-imidazolidinones are cyclic derivatives of urea. 1,3-Dimethyl-2-imidazolidinone is a polar solvent and Lewis base. Drugs featuring this ring system include emicerfont, imidapril, and azlocillin. Dimethylol ethylene urea is the reagent used in permanent press clothing. 2-Imidazolidinone is used as a formaldehyde scavenger in amino-resin systems and textile finishes.

4-Imidazolidinones 4-Imidazolidinones can be prepared from phenylalanine in two chemical steps (amidation with methylamine followed by condensation reaction with acetone):

Imidazolidinone catalyst work by forming an iminium ion with carbonyl groups of α,β-unsaturated aldehydes (enals) and enones in a rapid chemical equilibrium. This iminium activation lowers the substrate's LUMO. Several 4-imidazolidinones have been investigated. Drugs featuring the 4-imidazolidinone ring include hetacillin, NNC 63-0532, spiperone, and spiroxatrine.

Imidazolones or imidazolinone

Imidazolones (also called imidazolinones) are oxo derivatives of imidazoline (dihydroimidazoles). Examples include imidazol-4-one-5-propionic acid, a product of the catabolism of histidine, and imazaquin, a member of the imidazolinone class of herbicide.

References

Illustrations

Worked examples

Example 1 — a first encounter with Imidazolidinone

Start with the simplest possible case. Write down what Imidazolidinone claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Imidazolidinone 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 Imidazolidinone 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 Imidazolidinone

In research: Imidazolidinone appears in science 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 Imidazolidinone 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: Imidazolidinone is common in secondary-school and first-year university syllabi. It links to neighbouring topics Imidazolidinones, so understanding it makes those chapters shorter.
In everyday life: Look for Imidazolidinone 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 Imidazolidinone in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Imidazolidinone 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 Imidazolidinone out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Imidazolidinone in simple terms?

Why does Imidazolidinone matter?

Because it connects several science 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 Imidazolidinone?

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 Imidazolidinone.