𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Nucleophilic Catalysis of Reactions of Tricarbonyl(trimethylsilylarene)chromium Complexes with Electrophiles

✍ Scribed by Prof. Dr. Franz Effenberger; Dipl.-Chem. Klaus Schöllkopf

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
246 KB
Volume
20
Category
Article
ISSN
0044-8249

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Enantioselective Deprotonation/Electroph
Enantioselective Deprotonation/Electrophile Addition Reactions of Tricarbonyl(phenyl carbamate)chromium Complexes
✍ Anna Quattropani; Gérald Bernardinelli; E. Peter Kündig 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 German ⚖ 239 KB

Sequential reaction of the tricarbonyl[(h 6 -phenyl) carbamate]chromium complex 3 with chiral amide bases (see 4 and 5) and electrophiles yielded planar chiral ortho-substituted complexes 6 with up to 70% enantiomeric excess (ee) (Scheme 2, Table 1 and2). The enantiomer purity could be increased to

Electrophilic Reactions of Aryl- and Het
Electrophilic Reactions of Aryl- and Heteroaryl(triniethyl)silanes with a Remarkable Nucleophilic Catalysis
✍ Prof. Dr. Franz Effenberger; Dipl.-Chem. Wolfgang Spiegler 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 267 KB

7a)["l). The conjugative stabilization accompanying the formation of the pyrromethenic partial structure in the C,Dring region presumably promotes an eventual didehydrogenation step["' to (6). The same partial structure also occurs in the hexahydroporphinoid ligand system (1). The transformation (5

Nucleophilic and electrophilic promotion
Nucleophilic and electrophilic promotion of ligand substitution reactions in oxo-bridged, dinuclear chromium(III) complexes
✍ David R. Bessire; Robert A. Holwerda 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 134 KB 👁 1 views

Base hydrolysis reactions of [Cr(tmpa)(NCSe)] 2 O 2ϩ , [Cr(tmpa)(N 3 )] 2 O 2ϩ , and follow the pseudo-first-4ϩ 2ϩ [Cr (tmpa) (ϪO)(ϪPhPO )] [ Cr (tmpa) (ϪO)(ϪCO )] 2 2 4 2 2 3 order relationship (excess OH Ϫ ): For the com- obsd o b p p 3 plex, Ϫ2 Ϫ1 k (60ЊC) ϭ (1.50 Ϯ 0.03) ϫ 10 s ; ⌬H ‡ ϭ 61 Ϯ

Kinetics and Mechanisms of the Reactions
Kinetics and Mechanisms of the Reactions of π-Allylpalladium Complexes with Nucleophiles
✍ Oliver Kuhn; Herbert Mayr 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 133 KB 👁 1 views

Which nucleophiles are capable of attacking the allyl ligand of the Pd-stabilized allyl cation 1? This question is answered by the electrophilicity parameter of 1 which is derived from kinetic investigations.