684270-35-7Relevant academic research and scientific papers
Direct Synthesis of N -Protected Serine- And Threonine-Derived Weinreb Amides via Diboronic Acid Anhydride-Catalyzed Dehydrative Amidation: Application to the Concise Synthesis of -Garner's Aldehyde
Shimada, Naoyuki,Ohse, Naoki,Takahashi, Naoya,Urata, Sari,Koshizuka, Masayoshi,Makino, Kazuishi
supporting information, p. 1024 - 1028 (2021/05/18)
An efficient method for the direct synthesis of Weinreb amides derived from serine and threonine derivatives via diboronic acid anhydride-catalyzed hydroxy-directed amidation is described. This is the first successful example of the synthesis of serine- or threonine-derived Weinreb amides using catalytic dehydrative amidations. The methodology could be applied to the concise synthesis of Garner's aldehyde.
Efficient synthesis of N-protected amino/peptide Weinreb amides from T3P and DBU
Sharnabai,Nagendra,Vishwanatha,Sureshbabu, Vommina V.
, p. 478 - 482 (2013/02/23)
The reaction of Nα-protected amino/peptide acid with N,O-dimethylhydroxylamine hydrochloride in the presence of T3P and DBU to obtain enantiomerically pure Nα-protected amino/peptidyl Weinreb amides in high yields has been described. Fmoc-Ala-Weinreb amide 2a is obtained as single crystal, and its structure was determined through X-ray crystallography.
