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Ylides
A neutral dipolar molecule called a ylide or ylids has two formally positively charged heteroatoms (often nitrogen, phosphorus, or sulphur) directly connected, and both atoms have complete octets of electrons. The resulting structure may be thought of as two neighbouring atoms joined by both an ionic and a covalent connection. Ylides are a category of zwitterions and 1,2-dipolar molecules. They show up as reagents or reactive intermediates in organic chemistry. The Wittig reaction, which transforms ketones and in particular aldehydes to alkenes, uses phosphonium ylides. In these Wittig reagents, a phosphorus atom with three phenyl substituents and a link to a carbanion carries the positive charge.
Committee Members
Dai Yeun Jeong
Asia Climate Change Education Center, Korea, Republic of
Sergey Suchkov
R&D Director of the National Center for Human Photosynthesis, Mexico
Enrico Paris
CREA-IT & DIAEE, Italy CAT 2026 Speakers
Jiri Dedecek
J Heyrovsky Institute of Physical Chemistry , Czech Republic
Osman Adiguzel
Firat University, Turkey
Rabeharitsara Andry Tahina
GPCI-ESPA Antananarivo University, MadagascarSubmit your abstract Today
Title : Distant binuclear vanadium V(II) cationic sites in zeolites and their reactivity
Jiri Dedecek, J Heyrovsky Institute of Physical Chemistry , Czech Republic
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Jiri Dedecek, J Heyrovsky Institute of Physical Chemistry , Czech Republic
Title : The Concept and Implications of Low Carbon Green Growth
Dai Yeun Jeong, Asia Climate Change Education Center, Korea, Republic of
Title : Memory characteristics and diffusionless phase transformations in shape memory alloys
Osman Adiguzel, Firat University, Turkey
Title : The Fe PNP 15 H2O catalyst reduction catalytic test and its valorisation as acid catalyst to the methylal synthesis
Rabeharitsara Andry Tahina, GPCI-ESPA Antananarivo University, Madagascar