1.
J Org Chem
; 87(12): 8084-8098, 2022 06 17.
Artigo
em Inglês
| MEDLINE
| ID: mdl-35671244
RESUMO
Vinylboronic esters and allylboronic esters are well known to afford olefins by protodeboronation, and therefore homoallenylboronic esters should be similarly available as precursors for 1,3-dienes, but this strategy has not been well explored due to the limited availability of homoallenylboronic esters. Here, we describe a versatile synthesis of homoallenylboronic esters via lithiation-borylation and subsequent 1,2-rearrangement. The resulting homoallenylboronic esters were successfully converted into Z- and E-1,3-dienes by protodeboronation using Bu4NF and B(C6F5)3/PhOH, respectively.
Assuntos
Ésteres , Polienos , Alcenos
2.
J Antibiot (Tokyo)
; 56(1): 38-41, 2003 Jan.
Artigo
em Inglês
| MEDLINE
| ID: mdl-12670049