Alkane-tri:ol mono:alkyl ether(s) - useful as extractants for boric acid

摘要

Ethers of formula R2O-CRR1-CHOH-CH2-CHOH-R3 (I) are new, (where R and R1 are 1-6C alkyl or R+R1 is (CH2)5; R2 is 1-4C alkyl; R3 is 1-4C alkyl or phenyl). (I) are prepd. by reacting R2O-CRR1-CC-CO-R3 (II) with NH3 or an aliphatic or aromatic amine and hydrolysing the prod. to form R2O-CRR1-CO-CH2-CO-R3 (III), and then hydrogenating (III). (I) are useful as extractants for removing boric acid from acidic aq. solns., esp. MgCl2 solns. or mineral acids, the prefd. cpds. for this purpose being (I) where R = Me, R1 = C6H13, R2 = Me and R3 = Me or i-Pr.