Oxidation of sulfenyl substituted tricarbonyl(ll6-arene)chrom(o) complexes with Ti(OP& I diethyl lartraw I H20 I cumene hydroperoxide (2:4:2:1.3) gives sulfinyl suhstitured tricarbonyl(q6arcne)chromium(O) complexes in 60.73% yield and 111.86% e.e. (29.60% yield and 90.t95t c e. after cryslallisation
Asymmetric induction in the nucleophile addition to η6-arene-tricarbonyl-chromium(0) complexes
✍ Scribed by M.F Semmelhack; Hans-Günther Schmalz
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- French
- Weight
- 225 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0040-4039
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E Ar-type reactions of various heterocycles with ortho-substituted (1%S,P)-tricarbonyl[(1-chloroethyl)-h 6 -benzene]chromium(0) derivatives lead to a family of novel planar chiral bidentate and pseudo-bidentate ligands. Two members of this family (1%S,P)-2-[1%-tricarbonyl-h 6 -((2¦-P,P-diphenylphosp
In Table 1, entry 17 should read 74% e.e., entry 18 (71% e.e.), entry 14 (n/d), and entry 19 (47% e.e.) using 0.05 equiv. of PdCl(h 3 -C 3 H 5 ). Product yields reported (Scheme 2) are based on recovered alkene substrates. Complete hydrosilylation (assessed initially by NMR analysis of derived metho