A Direct Synthesis of Highly Substituted π‐Rich Aromatic Heterocycles from Oxetanes
作者:Alexander R. White、Ryan A. Kozlowski、Shiou‐Chuan Tsai、Christopher D. Vanderwal
DOI:10.1002/anie.201704119
日期:2017.8.21
five-membered heterocycles has driven the development of new methods for their synthesis for more than a century. Here, we disclose a general and reliable reaction manifold for the construction of highly substituted heterocycles through a facile Lewis-acid-catalyzed oxetane rearrangement. Notably, this methodology employs a keto-oxetane motif as a 1,4-dicarbonyl surrogate, which can be synthesized using