Diels-Alder reaction

[ deelz-ahl-der ]

/ ˈdilzˈɑl dər /

Save This Word!

noun Chemistry.

the reaction in which a conjugated diene combines with a double or triple bond of a given compound to form a ring of six carbon atoms.

QUIZ

ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?

We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.

Question 1 of 8

Which of the following words describes “sky blue”?

navy

beryl

azure

TAKE THE QUIZ TO FIND OUT

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar help

Improve Your Writing

Meet Grammar CoachImprove Your Writing

Origin of Diels-Alder reaction

Named after O. Diels and K. Alder

Words nearby Diels-Alder reaction

dielectric heating, dielectric lens, dielectric loss, dielectric strength, Diels, Diels-Alder reaction, Dien Bien Phu, diencephalon, diene, Dientamoeba fragilis, die-off

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use Diels-Alder reaction in a sentence

We haven't had any real fan reaction yet, but our collective fingers are crossed.
‘Archer’ Creator Adam Reed Spills Season 6 Secrets, From Surreal Plotlines to Life Post-ISIS|Marlow Stern|January 8, 2015|DAILY BEAST
Or how kicking a reaction-less eunuch in the crotch over and over again is comedy.
‘Galavant’: A Drunken, Horny Musical Fairy Tale|Melissa Leon|January 5, 2015|DAILY BEAST
Your general reaction runs along the lines of: “When will these geezers give it up and go for a mall walk or something?”
The World’s Toughest Political Quiz|Jeff Greenfield|December 31, 2014|DAILY BEAST
Jundullah and Jaish ul Adl sprang up “in reaction to that kind of oppression,” he said.
The Dangerous Drug-Funded Secret War Between Iran and Pakistan|Umar Farooq|December 29, 2014|DAILY BEAST

No one likes it when their sandcastle is knocked over, but his reaction is a bit, err, extreme.
Was Baby Jesus A Holy Terror?|Candida Moss|December 21, 2014|DAILY BEAST
While this reaction lasted he laughed away the evidence, and honestly believed he was exaggerating trifles.
The Wave|Algernon Blackwood
Ordinarily the diazo appears a little earlier than the Widal reaction—about the fourth or fifth day—but it may be delayed.
A Manual of Clinical Diagnosis|James Campbell Todd
For Lettice—the tender woman of his first acquaintance—had obviously experienced a moment of reaction.
The Wave|Algernon Blackwood
When applied to the diagnosis of typhoid fever, the phenomenon is known as the Widal reaction.
A Manual of Clinical Diagnosis|James Campbell Todd
As yet, it is the only agglutination reaction which has any practical value for the practitioner.
A Manual of Clinical Diagnosis|James Campbell Todd

British Dictionary definitions for Diels-Alder reaction

Diels-Alder reaction

/ (ˈdiːlzˈɔːldə) /

noun

chem a type of chemical reaction in which one organic compound containing conjugated double bonds adds to another containing an ethylenic bond to form a product containing a ring

Word Origin for Diels-Alder reaction

C20: named after Otto Diels (1876–1954) and Kurt Alder (1902–58), German chemists

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012