chemistry

Vram Dovlatyan

Vram Dovlatyan 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 Vram Dovlatyan rather than just read about it. In short: Vram Vaginaki Dovlatyan (Armenian: Վռամ Վաղինակի Դովլաթյան; August 13, 1923, Nor Bayazet - December 25, 2005, Yerevan) was a Soviet and Armenian organic chemist, Doctor of Chemical Sciences (1965), professor (1967), and Honored Scientist of the Armenian SSR (1980). He was also an Academician of the Academy of Sciences of the Armenian SSR (1994, corresponding member 1986).

Key takeaways

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Reproduce the core statement of Vram Dovlatyan from memory before moving on to harder problems.

Reference excerpt

Vram Vaginaki Dovlatyan (Armenian: Վռամ Վաղինակի Դովլաթյան; August 13, 1923, Nor Bayazet - December 25, 2005, Yerevan) was a Soviet and Armenian organic chemist, Doctor of Chemical Sciences (1965), professor (1967), and Honored Scientist of the Armenian SSR (1980). He was also an Academician of the Academy of Sciences of the Armenian SSR (1994, corresponding member 1986). He is the elder brother of Frunze Dovlatyan.

Biography Vram Dovlatyan was born in Nor Bayazet. He participated in the Great Patriotic War and worked there as a coder at the headquarters. In 1949 he graduated from the Faculty of Chemistry of Yerevan State University. Since 1954, he worked at the Department of General Chemistry of the Armenian Agricultural Institute, from 1958 to 1989 he served as head of the Department of General Chemistry. From 1962 to 2005, he was the head of the Laboratory of Pesticide Problems at the same institute, and since 1962 he also headed the experimental laboratory for the synthesis of pesticides. Full member of the RAS since 1994. New highly active herbicides, fungicides and growth stimulants discovered in the Dovlatyanovsky scientific laboratory are widely used in agriculture. He studied the reactions of chloromethoxymethylation of the ester acetic acid, the catalytic effect of quaternary ammonium salts on the formation of esters carbonic acid. Unique rearrangement reactions of chloralkox (thio, amine-sim-triazines) were discovered (in combination with the production of tara-sim-triazines).

Works Author of about 450 scientific works, including 130 copyright certificates. Based on his developments, 4 doctoral and 50 candidate dissertations were defended. For 40 years he headed the department of general chemistry of the Armenian Agricultural Institute, now the State Agrarian University of Armenia. There he created a problematic laboratory for the synthesis and testing of pesticides, which he led until the end of his life.

Author of many patents. Herbicides, antifungal agents and growth stimulants were obtained (crotilin, metazin, zulfazin, phenagon, alavin, etc.), some of which were invested in agriculture. Studied the reactions of chloromethoxymethylation of acetoacetic acid ester, the catalytic effect of quaternary ammonium salts on the formation of both esters of carboxylic acids. Discovered original rearrangement reactions of chloroalkoxy(thio,amino)-sym-triazines (conjugated to form tera-sym-triazines). The method for the synthesis of cyanamine-sim-trazines proposed by Dovlatyan is patented in Germany, Japan, and Switzerland. Included in the list of 500 influential leaders in the field of world science. Dovlatyan managed to solve the problem of effective disposal of waste chloroprene rubber - 1,3-dichlorobutene-2, on the basis of which he obtained the herbicide crotiline, which is widely used.

Awards Soviet Union Order of the Patriotic War, 2nd class Order of the Red Banner of Labour (2) Order of the Badge of Honour Honored Scientist of the Armenian SSR Jubilee Medal "In Commemoration of the 100th Anniversary of the Birth of Vladimir Ilyich Lenin" Jubilee Medal "Twenty Years of Victory in the Great Patriotic War 1941–1945" Jubilee Medal "Thirty Years of Victory in the Great Patriotic War 1941–1945" Jubilee Medal "70 Years of the Armed Forces of the USSR" Medal "Veteran of Labour" Armenia Jubilee Medal "50 Years of Victory in the Great Patriotic War 1941–1945" Jubilee Medal "60 Years of Victory in the Great Patriotic War 1941–1945" Anania Shirakatsi Medal Voted Person of the Year 1997 by the American Biographical Institute. American Biographical Institute title "Man of the Century".

References

Illustrations

Worked examples

Example 1 — a first encounter with Vram Dovlatyan

Start with the simplest possible case. Write down what Vram Dovlatyan 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 Vram Dovlatyan 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 Vram Dovlatyan 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 Vram Dovlatyan

In research: Vram Dovlatyan 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 Vram Dovlatyan 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: Vram Dovlatyan is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1923 births, 2005 deaths, Armenian chemists, so understanding it makes those chapters shorter.
In everyday life: Look for Vram Dovlatyan 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 Vram Dovlatyan in 20 minutes

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

Frequently asked questions

What is Vram Dovlatyan in simple terms?

Why does Vram Dovlatyan 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 Vram Dovlatyan?

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 Vram Dovlatyan.