𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Inversion of Secondary Cyclic Grignard Compounds

✍ Scribed by Priv.-Doz. Dr. Adalbert Maercker; Dipl.-Chem. Reinhart Geuss

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
217 KB
Volume
10
Category
Article
ISSN
0044-8249

No coin nor oath required. For personal study only.

✦ Synopsis

Table 1. Substituted cycloheptatrienes from 2,4,6-cycloheptatriene-l-carbonitrile ( l ) , b. p. 78-80112 torr, which was prepared from tropylium tetrafluoroborate [a]. CPd.

📜 SIMILAR VOLUMES

Catalytic enantioselective conjugate add
Catalytic enantioselective conjugate addition of Grignard reagents to cyclic α,β-unsaturated carbonyl compounds
✍ Motomu Kanai; Yuichi Nakagawa; Kiyoshi Tomioka 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 781 KB

A catalytic asymmetric conjugate addition reaction of organocopper reagents, generated from copper salt, a chiral phosphine, and Grignard reagent, with cyclohexenone is highly dependent on the counter anion of copper species, solvents, Grignard reagents, and the structure of the chiral phosphine. Th

Asymmetric Synthesis of a Chiral Seconda
Asymmetric Synthesis of a Chiral Secondary Grignard Reagent
✍ Reinhard W. Hoffmann; Bettina Hölzer; Oliver Knopff; Klaus Harms 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 85 KB 👁 2 views

Chiral organometallic reagents are of interest in stereoselective synthesis. This holds in particular for chiral aheterosubstituted organolithium and Grignard reagents. However, their reactions with electrophiles do not always take a stereochemically homogenous pathway. It is not clear In summary,

ChemInform Abstract: Catalytic Enantiose
ChemInform Abstract: Catalytic Enantioselective Conjugate Addition of Grignard Reagents to Cyclic α,β-Unsaturated Carbonyl Compounds.
✍ Motomu Kanai; Yuichi Nakagawa; Kiyoshi Tomioka 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 35 KB 👁 2 views

Catalytic Enantioselective Conjugate Addition of Grignard Reagents to Cyclic α,β-Unsaturated Carbonyl Compounds. -The outcome of the title reaction is influenced by many factors such as amount and structure of the chiral phosphine, copper salt, Grignard reagent, as well as the solvent used.

Internal reactions in the Grignard-compl
Internal reactions in the Grignard-complex containing compounds with alkoxy-groups: Part II. Cyclic acetals
✍ C. Blomberg; A. D. Vreugdenhil; T. J. Homsma 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 270 KB

## Abstract If one molar equivalent of 2‐methyl‐, 2‐ethyl‐ or 2‐__n__‐propyl‐1,3‐dioxolane is used for the preparation of Grignard‐reagents in benzene, the five‐membered hetero‐ring is opened with formation of a magnesium halide 2‐alkoxyethan‐1‐olate. The steric and electronic effects of the alkyl

Slow inversion of stereoisomers of cycli
Slow inversion of stereoisomers of cyclic GABA analogues
✍ Roman Gancarz; Rafał Latajka; Agnieszka Halama; Paweł Kafarski 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 602 KB

In 31 P NMR spectra of derivatives of 1-amino-and 1-hydroxypiperid-4-ylphosphonic acids, fully reversible conformational equilibria in aqueous and methanolic solutions were observed. Depending on the pH of the medium and temperature, one or two phosphorus signals were observed indicating slow confor