Synthesis of Phosphonium Salts—Phosphine Structure and Inorganic Salts Effects
✍ Scribed by Mečiarová, Mária; Toma, Štefan; Loupy, André; Horváth, Branislav
- Book ID
- 120425636
- Publisher
- Taylor and Francis Group
- Year
- 2007
- Tongue
- English
- Weight
- 244 KB
- Volume
- 183
- Category
- Article
- ISSN
- 1042-6507
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
the mother liquors produce further 16 %. After being washed with cold ethanol and ether, the crystals are analytically pure. The proton magnetic resonance spectrum 141 gave the following data (numbers indicate p.p.m with tetramethylsilane as standard) : Si(CH& Si-CHz-Si S-CHI-C C-CH2-0 0.6 3.0 3.8 4
A short and efficient synthesis of the two enantiomeric iron-complcxed phosphonium salts (+)-1 and (-)-2 is described. Upon reaction with the chiral fotmyloxirane 3, the corresponding chiral ylides exhibit quite difietent mactivities. Few examples of Wittig-type reactions with phosphotus or sulphur