Directed Metalation of Heterocycles, 5-Methoxy-2-phenyloxazol-4-yllithium: An Approach to α , β -Dehydroamino Acids
Year: 2009
Type: article
Abstract: 5-Methoxy-2-phenyloxazole was deprotonated at C4 (by n -BuLi or LDA, in THF at −78 C∘ ). The resulting anion was generally unreactive to alkylation (except methylation with MeI-TMEDA) but added to PhCHO and Me2 CHCHO. The alcohols thus produced dehydrated and ring opened in acid, to the corresponding α , β -dehydroamino acids in moderate overall yields.
Source: Organic Chemistry International
DOI: 10.1155/2010/452956
Institution: Indian Institute of Science Bangalore
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W1981106524
