• In pyridine solution, functions as a condensing agent in the formation of esters from acids and alcohols: Bull. Chem. Soc. Jpn., 56, 639 (1983).
• Reagent for the N-protection of amino acids. Derivatives are stable to acid but cleaved by ammonia: Gazz. Chim. Ital., 93, 65 (1963); 94, 616 (1964); Eur. J. Biochem., 7, 328 (1968). See Appendix 6.