In:
European Journal of Organic Chemistry, Wiley, Vol. 2016, No. 34 ( 2016-12), p. 5647-5652
Abstract:
The Ir‐catalyzed borylation of [4]helicene under different reaction conditions was studied for the first time. The results indicate that monoborylation proceeds to give a mixture of 2‐ and 3‐borylated products in good yields (up to 74 % isolated yield). It was possible to shift the selectivity in favor of the 3‐borylated product by using sterically demanding ligands. The monoborylated [4] helicenes were further arylated by using a Suzuki–Miyaura cross‐coupling or oxidized to the corresponding phenols in very good yields.
Type of Medium:
Online Resource
ISSN:
1434-193X
,
1099-0690
DOI:
10.1002/ejoc.v2016.34
DOI:
10.1002/ejoc.201600979
Language:
English
Publisher:
Wiley
Publication Date:
2016
detail.hit.zdb_id:
1475010-7
