Some Reactions of Grignard Reagents Derived from Brominated Formals.
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 کاملSynthesis of fatty acids using organocopper (I) ate complexes derived from Grignard reagents.
Fatty acid esters have been synthesized in good yield by reaction between copper(I) ate complexes formed from methylcopper(I) and primary or secondary Grignard reagents and esters of primary iodoalkylcarboxylic acids. The synthetic method is i l lustrated with proced.ures for CHr:gH(CHz)rgCO2C2H5, CeHsCHzO(CH2)16COzCzHs, CH3(CH2)25CO2C2H5, CH3O2C(CH)I2CO2CHI, CzHsOzC(CHz)szCO2C2H5, and CHg(CH2)...
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 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: 1964
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.85.9_561