1200405-67-9Relevant articles and documents
Bifunctional Squaramide Organocatalysts for the Asymmetric Addition of Formaldehyde tert-Butylhydrazone to Simple Aldehydes
Matador, Esteban,de Gracia Retamosa, María,Monge, David,Iglesias-Sigüenza, Javier,Fernández, Rosario,Lassaletta, José M.
, p. 6854 - 6860 (2018)
The nucleophilic addition of formaldehyde tert-butylhydrazone to simple aldehydes (a formal hetero-carbonyl–ene reaction) can be performed with good reactivity and excellent enantioselectivity by virtue of the dual hydrogen-bonding activation exerted by amide–squaramide organocatalysts. The resulting hydroxydiazenes (azo alcohols) were isolated in high yields as enantiomerically enriched azoxy compounds after a regioselective azo-to-azoxy transformation. Subsequent derivatization provides an entry to relevant amino alcohols, oxazolidinones, and derivatives thereof.
COMPOUNDS AND RELATED METHODS OF USE
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Paragraph 0210; 0211, (2013/03/28)
Described herein are compounds of formula (I), related compositions, and their use, for example in the formation of α-amino acids or a precursor thereof such as an α-aminonitrile.