| 单词 | aldehyde ammonia |
| 释义 | > as lemmasaldehyde ammonia aldehyde ammonia n. now rare an organic compound having a hydroxyl and an amino group attached to the same carbon atom; (in earliest use) spec. 1-aminoethanol, CH3CH(OH)(NH2), a crystalline solid formed by reaction of acetaldehyde (ethanal) and ammonia. ΚΠ 1845 Penny Cycl. Suppl. I. 335/2 When [aldehyde is] combined with ammonia, aldehyde-ammonia is formed, which, as already noticed, is a crystalline body. 1907 G. M. Norman Systematic Pract. Org. Chem. i. vi. 24 Dry ammonia is passed into the ether solution, and the aldehyde ammonia which separates is collected on the filter pump. 1955 B. C. L. Kemp Elem. Org. Chem. (new ed.) viii. 103 Formaldehyde differs from the other aldehydes in not forming an aldehyde-ammonia. 1977 J. March Adv. Org. Chem. (ed. 2) xvi. 816 The initial products would be expected to be hemiaminals (also called ‘aldehyde ammonias’)..and/or imines. < as lemmas |
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