The Grignard Reagents Prepared from Perchlorofluorobenzenes and Their Reactions
نویسندگان
چکیده
منابع مشابه
Di-Grignard reagents and metallacycles
Aliphatic ,w-dibromides can be converted to the corresponding c,w-di—Grignard reagents; for those members carrying less than four carbon atoms between the functions, special procedures are required. The synthesis, structure and applications of the di-Grignard reagents are discussed; particular emphasis is placed on the structures of the corresponding cyclic dialkylmagnesiums, and on the use of ...
متن کاملThermal epimerization of diastereomeric Grignard reagents.
Thermal epimerization is the key to changing the endo-to-exo ratio of the diastereomeric bornyl and fenchyl Grignard reagents from 67:33 to 96:4 and from 20:80 to 80:20, respectively.
متن کاملPalladium-catalyzed reactions of arylindium reagents prepared directly from aryl iodides and indium metal.
Treatment of aryl iodides with indium metal in the presence of lithium chloride leads to the formation of an organoindium reagent capable of participating in cross-coupling reactions under transition-metal catalysis. Combination with aryl halides in the presence of 5 mol % Cl2Pd(dppf) furnishes biaryl compounds in good yields; similarly, reaction with acyl halides or allylic acetates/carbonates...
متن کاملEnantioselective Addition of Grignard Reagents to Aldehydes
The addition of Grignard reagents to aldehydes in the presence of chiral aminoalcohols shows a moderate enantioselectivity. The study carried out with a series of ligands allows the correlation between the structural characteristics and their reactivity. Introduction The use of chiral aminoalcohol to lead asymmetrically nucleophilic additions of organometallics to carbonyl compounds is a field ...
متن کاملIron-catalyzed alkylations of aromatic grignard reagents.
Significance: The development of iron-catalyzed cross-coupling reactions is an extremely promising field of research, taken into account the importance of this method for current organic synthesis and the multiple problems connected with commonly used Pdand Ni-catalyzed processes. The group of Cahiez reported the first iron-catalyzed alkyl–aryl cross-coupling reaction, suitable for industrial l...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1968
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.89.11_1131