Strategic Approach to the Metamorphosis of γ-Lactones to NH γ-Lactams via Reductive Cleavage and C–H Amidation
摘要:
A new approach has elaborated on the conversion of γ-lactones to the corresponding NH γ-lactams that can serve as γ-lactone bioisosteres. This approach consists of reductive C-O cleavage and an Ir-catalyzed C-H amidation, offering a powerful synthetic tool for accessing a wide range of valuable NH γ-lactam building blocks starting from γ-lactones. The synthetic utility was further demonstrated by the late-stage transformation of complex bioactive molecules and the asymmetric transformation.
Strategic Approach to the Metamorphosis of γ-Lactones to NH γ-Lactams via Reductive Cleavage and C–H Amidation
作者:Hoi-Yun Jung、Sukbok Chang、Sungwoo Hong
DOI:10.1021/acs.orglett.9b02673
日期:2019.9.6
A new approach has elaborated on the conversion of γ-lactones to the corresponding NH γ-lactams that can serve as γ-lactone bioisosteres. This approach consists of reductive C-O cleavage and an Ir-catalyzed C-H amidation, offering a powerful synthetic tool for accessing a wide range of valuable NH γ-lactam building blocks starting from γ-lactones. The synthetic utility was further demonstrated by the late-stage transformation of complex bioactive molecules and the asymmetric transformation.
Metal–ligand bifunctional activation and transfer of N–H bonds
作者:Kilian Muñiz、Anton Lishchynskyi、Jan Streuff、Martin Nieger、Eduardo C. Escudero-Adán、Marta Martínez Belmonte
DOI:10.1039/c1cc10999e
日期:——
The concept of metalâligand bifunctionality can be employed for an efficient activation of NâH bonds by well-defined ruthenium amido complexes. An enantioselective catalytic aza-Michael reaction was developed on the basis of this process, which gives rise to indoline β-amino acids.