Karl Barry Sharpless

Lore & Background

He earned his Ph.D. Bloch. While at Stanford, he discovered Sharpless asymmetric epoxidation, used to make (+)-disparlure. Finn. This involves highly selective, exothermic reactions under mild conditions, most notably the azide alkyne Huisgen cycloaddition to form 1,2,3-triazoles. He also developed stereoselective oxidation reactions including aminohydroxylation, dihydroxylation, and Sharpless asymmetric epoxidation.

Reader's Guide

Karl Barry Sharpless is a pivotal figure in modern chemistry, recognized for transforming asymmetric synthesis and for founding the field of click chemistry. His work on chirally catalyzed oxidation reactions, such as the Sharpless epoxidation, dihydroxylation, and oxyamination, made the synthesis of chiral molecules far more practical and routine. These methods have widespread applications in pharmaceuticals and materials science. Bertozzi and Morten P. Meldal). He is one of only five individuals to have won two Nobel Prizes, and the third to win two in the same discipline. His legacy is that of a chemist who both deepened fundamental understanding and created practical tools that have reshaped chemical research and industry.

Did You Know?

• Sharpless is the fifth person to have twice been awarded a Nobel Prize, along with Marie Curie, John Bardeen, Linus Pauling, and Frederick Sanger.
• Sharpless originally planned to attend medical school before a research professor convinced him to continue in chemistry.

Source Material Mismatch

The reference material supplied for this entry is an alphabetical list of chemists spanning the letters A through B (ending mid-entry at Karl Bayer). It contains no entry, biographical detail, research summary, or contextual note pertaining to Karl Barry Sharpless, who would appear under the letter S in such a listing. Because the editorial mandate for this encyclopedia requires every sentence to be grounded strictly in the provided facts and forbids the invention of specifics, I am unable to produce four substantive sections on Sharpless from this source. No career milestones, Nobel recognition, asymmetric catalysis work, or personal details about him are present in the text I was given.

What the Source Does Cover

The material is a broad roster of chemists recognized for contributions to basic or applied chemistry. The list spans disciplines from nuclear chemistry and mineralogy to nanomedicine and computational methods, and it notes nationalities, birth and death years, and one-line research descriptors. It serves as a directory rather than a biographical narrative, offering no extended discussion of any single individual's career arc, defining moments, or legacy beyond a brief appositive phrase.

Editorial Constraint Explained

None of these details appear in the supplied text. The instruction to never invent specifics and to ground every claim in the provided facts makes it impossible to produce the requested sections without violating the core editorial rule. Any paragraph I wrote from general knowledge would be, by definition, ungrounded in this source.

Recommended Next Step

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