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Ethyltriphenylphosphonium bromide acts as a reactant in the synthesis of D-amino acids from L-cysteine-derived thiazolidines, Leiodolide A through aldol reactions and Horner-Wadsworth-Emmons olefination. It is also used in the preparation of cycloalkanoindolines through diastereoselective intramolecular inimo-ene reactions. Further, it is used as a reagent in solid-state metathesis polycondensation to prepare alkyl-dipropenylthiophene monomers and Mizoroki-Heck cyclization and cascading Tsuji-Trost cyclization reactions.
Reaction of the phosphorane (generated using 1 mole of n-BuLi) with an aldehyde at low temperature, followed by a second mole of n-BuLi, gives the -oxido phosphonium ylide which can then be reacted with 1,2-diiodoethane to give (Z)-2-iodo-2-alkenes with high stereoselectivity: J. Chem. Soc., Perkin 1, 1331 (1995). See Appendix 1.
Bagh, F. S. G.; Shahbaz, K.; Mjalli, F. S.; Hashim, M. A.; AlNashef, I. M. Zinc(II) chloride-based deep eutectic solvents for application as electrolytes: Preparation and characterization. J. Mol. Liq. 2015, 204, 76-83.
Harada, K.; Imai, A.; Uto, K.; Carter, R. G.; Kubo, M.; Hioki, H.; Fukuyama, Y. Synthesis of jiadifenin using Mizoroki-Heck and Tsuji-Trost reactions. Tetrahedron 2015, 71 (15), 2199-2209.
해저드 설명서 (EU): H302-H312-H315-H319-H335
Harmful if swallowed. Harmful in contact with skin. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
주의 설명서: P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.