Regioselective biotransformations of dinitriles using Rhodococcus sp. AJ2701
作者:Otto Meth-Cohn、Mei-Xiang Wang
DOI:10.1039/a703904b
日期:——
or γ-sulfur is present. Hydrolysis of N,N-bis(2-cyanoethyl)anilines 4h–j takes place slowly affording exclusively the monoacids 5h–j while the monocyano amides 5o–p are obtained as the sole isolable product from rapid hydrolysis of the corresponding N,N-bis(2-cyanomethyl)butylamine 4o and N,N-bis(3-cyanopropyl)butylamine 4p. Higher homologues of arylimino- and butylimino-dinitriles are inert to enzymatic
使用Rhodococcus sp在非常温和的条件下选择性地水解了多种二腈。AJ270。脂族二腈NC [CH 2 ] n CN 1进行区域选择性水解,得到的单官能酸2在腈官能团之间最多具有4个亚甲基,而n > 4的单酸2获得的二酸3的收率很好。当将氧置于氰基的β,γ或δ或β-或γ-上时,带有醚键或硫化物键的二腈NC [CH 2 ] n X [CH 2 ] n CN 4被有效地转化为一元酸5。存在硫。N,N的水解双(2-氰乙基)苯胺的4H-j取而monocyano酰胺0-50 p如从相应的快速水解的唯一可分离产物获得缓慢发生,得到专门的一元酸5H-J Ñ,Ñ双(2-氰基)丁胺4o和N,N-双(3-氰基丙基)丁胺4p。芳基-和丁基亚氨基-二腈的较高同系物对酶促水解是惰性的。多种其它脂族二腈的已被容易地转化成单酸以良好至优异的产率,除了ö -phenylenediacetonitrile其给出ø