Deuteriation and tritiation of aryl aldehydes in the formyl group and the synthesis of (±)-3,4-dihydroxy[β-<sup>2</sup>H<sub>2</sub>]phenylalanine
作者:D. J. Bennett、G. W. Kirby、V. A. Moss
DOI:10.1039/j39700002049
日期:——
Aryl aldehydes have been converted into the corresponding α-aryl-α-morpholinoacetonitriles and thence, by treatment with base, into the derived benzylic anions. Quenching of these anions with deuterium oxide or tritiated water, followed by hydrolysis with mineral acid, gave formly-labelled aldehydes. [formyl-2H]-3,4-Dimethoxy-benzaldehyde gave, when heated with alkali, [methylene-2H2]-3,4-dimethoxybenzyl
芳醛已被转化为相应的α-芳基-α-吗啉代乙腈,并因此通过用碱处理而转化为衍生的苄基阴离子。将这些阴离子用氧化氘或ti化水淬灭,然后用无机酸水解,得到形式标记的醛。[甲酰基- 2 H] -3,4-二甲氧基-苯甲醛,得到,当与碱,[加热亚甲基- 2 ħ 2 ] -3,4-二甲氧基苄醇,合成的方便的起始原料(±)-3, 1,4-二羟基[β- 2 ħ 2 ]苯丙氨酸。