ENANTIOSELECTIVE ADDITION OF DICHLOROCARBENE TO OLEFINS BY USE OF CHIRAL TERTIARY AMINES
نویسندگان
چکیده
منابع مشابه
Enantioselective oxidative cross-dehydrogenative coupling of tertiary amines to aldehydes.
The direct oxidative cross-dehydrogenative coupling (CDC) of two C H bonds can be an efficient and relatively clean strategy in organic synthesis. Various sp C Hbonds, such as benzylic and allylic C H bonds, the a-C H bonds of amines and ethers, and the C H bonds of alkanes can be oxidized for direct reaction with carbon nucleophiles. Among these reactions, the oxidation of tertiary amines to g...
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A homoleptic scandium trialkyl complex in combination with a borate compound served as an excellent catalyst for the C-H addition of aliphatic tertiary amines to olefins. This highly regiospecific, 100% atom efficient C-H bond alkylation reaction was applicable to a wide variety of tertiary amines and olefins, including functionalised styrenes and unactivated α-olefins. This work represents the...
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A catalytic β-selective addition of amines to styrenes proceeded in the presence of cationic Ru complexes combined with diphosphine ligands. In the reaction of α-methylstyrene, an enantioselective addition was achieved by using xylylBINAP.
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Copper complexes of chiral tridentate pybox ligands synthesized using a modified procedure have been studied as catalysts for the enantioselective allylic oxidation of olefins. A variety of olefins have been used in this reaction. Using 5 mol% of a Cu(II) complex of the tridentate pybox ligand, phenylhydrazine, and tert-butyl perbenzoate as oxidant in acetone, optically active allylic benzoates...
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A family of 9-amino(9-deoxy) epicinchonine derivatives, possessing a range of mono- and bidentate hydrogen bond donor groups at the 9-position, were synthesised and evaluated for asymmetric organocatalytic activity in the dimethyl malonate Michael addition to beta-nitrostyrene; thiourea derivative was identified as the most effective bifunctional organic catalyst and found to induce high enanti...
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ژورنال
عنوان ژورنال: Chemistry Letters
سال: 1976
ISSN: 0366-7022,1348-0715
DOI: 10.1246/cl.1976.1149