Nikolay Semenov USSR (now Russia) Nobel Prize in #Chemistry 1956 Field of study : #ChemicalKinetics "During chemical reactions, atoms and molecules regroup and form new constellations. A chain reaction can occur. Explosions and fire are examples of chain reactions" #chemtwitter

Marie Sklodowska-Curie "After all, science is essentially international, and it's only through lack of historical sense that national qualities have been attributed to it" #chemtwitter #chemistry

Pyridine #chemistry The first isolation was reported in 1849 by the Scottish chemist 🏴󠁧󠁢󠁳󠁣󠁴󠁿T. Anderson. Like previously in alchemy tradition, he isolated pyridine from heated mixtures of animal bones. Currently, 20,000 tons per year worldwide are produced #ChemTwitter

BREAKING NEWS: The Royal Swedish Academy of Sciences has decided to award the 2022 #NobelPrize in Chemistry to Carolyn R. Bertozzi, Morten Meldal and K. Barry Sharpless “for the development of click chemistry and bioorthogonal chemistry.”

In 1887 Sigmund Gabriel 🇩🇪 reported a method for the alkylation of phthalimide with primary alkyl halides. Further hydrolysis with strong acids or bases yields the free amine. In 1926 Ing. Mask optimized the procedure by using hydrazinolysis to get the free amine.

1954 - The Wittig Reaction -🎖️ 1979 🇩🇪George Wittig and Ulrich Schöllkopf reported the conversion of aldehydes and ketones to alkenes when reacting with ylides. The reaction shows a strong driving force as the phosphine oxide is formed. …mistry-europe.onlinelibrary.wiley.com/doi/10.1002/cb…

DMF, a polar solvent loved by some, hated by others. First produced in 1893 by French chemist Albert Verley, by distilling dimethylamine hydrochloride and potassium formate. Verley also patented a method for vanillin synthesis from isoeugenol and ozone in 1895 #Chemistry

In 1955, John Sheehan🇺🇲 first reported the use of dicyclohexylcarbodiimide (DCC) as a coupling reagent for the synthesis of peptides. #chemtwitter Sheehan achieved the synthesis of penicillin V in 1957, one of the most challenging chemistry problems at that time.

Did you know? AIBN was discovered by Thiele & Heuser🇩🇪 in 1896, but its use as a radical polymerization initiator was first reported in "German plastics practice" in the 1940s. AIBN's consistent initiating rate made it a popular choice for kinetic studies. #Polymer #chemtwitter

In 1983, D. Dess and J.C. Martin published their groundbreaking work on the Dess-Martin periodinane (DMP), transforming the landscape of alcohol oxidation in organic synthesis with its mild and selective approach. #chemtwitter Org. Chem. 1983, 48, 22, 4155–4156.

Organic azides: from Peter Griess' 1864 discovery of Phenyl azide by the reaction of ammonia & phenyldiazonium. They power airbags, enable click chemistry, & more. Griess also discovered diazotization reactions of arylamines. [royalsocietypublishing.org/doi/10.1098/rs…] 💥 #chemistry #chemtwitter