47166-12-1Relevant academic research and scientific papers
Oxidation of Alkynyl Boronates to Carboxylic Acids, Esters, and Amides
Li, Chenchen,Li, Ruoling,Zhang, Bing,Zhao, Pei,Zhao, Wanxiang
, p. 10913 - 10917 (2020/05/25)
A general efficient protocol was developed for the synthesis of carboxylic acids, esters, and amides through oxidation of alkynyl boronates, generated directly from terminal alkynes. This protocol represents the first example of C(sp)?B bond oxidation. This approach displays a broad substrate scope, including aryl and alkyl alkynes, and exhibits excellent functional group tolerance. Water, primary and secondary alcohols, and amines are suitable nucleophiles for this transformation. Notably, amino acids and peptides can be used as nucleophiles, providing an efficient method for the synthesis and modification of peptides. The practicability of this methodology was further highlighted by the preparation of pharmaceutical molecules.
Microwave-assisted solution phase peptide synthesis in neat water
Mahindra, Amit,Nooney, Karthik,Uraon, Shrikant,Sharma, Krishna K.,Jain, Rahul
, p. 16810 - 16816 (2013/09/23)
An environmentally benign protocol for solution phase peptide synthesis has been developed in neat water using TBTU/HOBt/DIEA as a coupling combination under microwave irradiation. Key features of this procedure are the replacement of commonly used toxic organic solvents like DMF and NMP, the use of lower amounts of reactants, compatibility with both N-α-Boc- and N-α-Fmoc-protected amino acids and all commonly used side-chain protective groups, short reaction time, and racemization-free synthesis in high yield and purity. The Royal Society of Chemistry 2013.
