Bi-mediated allylation of aldehydes in [bmim][Br]: a mechanistic investigation
نویسندگان
چکیده
منابع مشابه
Zn-mediated electrochemical allylation of aldehydes in aqueous ammonia.
An efficient electrosynthesis of homoallylic alcohols from allylic bromides and aldehydes in aqueous ammonia is achieved in an undivided cell fitted with a pair of zinc electrodes.
متن کاملAqueous Barbier allylation of aldehydes mediated by tin.
The aqueous tin-mediated Barbier reaction affords good to excellent yields and moderate syn diastereoselectivity under basic and acidic conditions. The high yields and stereoselectivity observed in the case of o-substituted aldehydes suggest a cyclic organotin intermediate or transition state in K2HPO4 solution. A practical and efficient aqueous tin allylation of methoxy- and hydroxybenzaldehyd...
متن کاملA convenient procedure for bismuth-mediated Barbier-type allylation of aldehydes in water containing fluoride ions.
A new and convenient procedure for synthesis of homoallylic alcohols in generally good to excellent yields has been developed. The bismuth-mediated Barbier-type allylation of aldehydes (aromatic, aliphatic, alicyclic and heterocyclic) with allyl bromide has been carried out smoothly in water in the presence of fluoride ions.
متن کاملEnantioselective organocatalytic formal allylation of α-branched aldehydes.
Heteroarylvinyl sulfone 1 has been successfully used as a new sulfonyl Michael acceptor in aminocatalytic reactions with branched aldehydes. Subsequent one-pot Julia-Kocienski olefination allows the challenging preparation of enantiomerically pure α-allylated aldehydes bearing C-α quaternary carbons.
متن کاملNi-catalyzed asymmetric reductive allylation of aldehydes with allylic carbonates.
This work features first asymmetric Ni-catalyzed reductive coupling of allylic carbonates with aldehydes, which may proceed via allyl-Ni intermediates although Zn was used as the terminal reductant. Moderate to excellent enantiomeric excess was obtained with excellent functional group tolerance.
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ژورنال
عنوان ژورنال: Beilstein Journal of Organic Chemistry
سال: 2018
ISSN: 1860-5397
DOI: 10.3762/bjoc.14.193