RT info:eu-repo/semantics/article
T1 Brønsted acid−catalyzed synthesis of tetrasubstituted allenes and polysubstituted 2H-chromenes from tertiary propargylic alcohols
A1 Cabrera Lobera, Natalia
A1 Velasco Pérez, Noelia
A1 Sanz Díez, Roberto
A1 Fernández Rodríguez, Manuel A.
K1 Allenes
K1 Brønsted acid catalysis
K1 Propargylic alcohols
K1 2H-chromenes
K1 Nucleophilic substitution
K1 Química orgánica
K1 Chemistry, Organic
AB A practical and environmentally benign Brønsted acid−catalyzed protocol for the preparation of all-carbon tetrasubstituted allenes, consisting in the direct SNˈ addition of tri- or dimethoxy arenes or allyltrimethylsilane to tertiary propargylic alcohols, has been developed. In addition, a straightforward synthesis of densely substituted 2H-chromenes by metal-free tandem allenylation/heterocyclization reaction of methoxyphenols and tertiary alkynols is presented.
PB Elsevier
SN 0040-4020
YR 2019
FD 2019-08
LK http://hdl.handle.net/10259/5177
UL http://hdl.handle.net/10259/5177
LA eng
NO Junta de Castilla y León and FEDER (BU291P18) and Ministerio de Economía y Competitividad (MINECO) and FEDER (CTQ2016-75023-C2-1-P)
DS Repositorio Institucional de la Universidad de Burgos
RD 25-nov-2024