phosphamiden.

Brit.

/ˈfɒsfəmʌɪd/, U.S.

/ˈfɑsfəˌmaɪd/

Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: phospho- comb. form, amide n.

Etymology: < phospho- comb. form + amide n., after French phosphamide (C. Gerhardt 1846, in Ann. de chim. et de physique 18 194). Compare German Phosphamid (1846). Compare slightly later phosphoramide n.

Chemistry.

Any of a large group of compounds containing a phosphorus atom bonded to an oxygen atom and to one or more (often substituted) amine groups. Cf. phosphoramide n.

ΚΠ

1849 H. Watts tr. L. Gmelin Hand-bk. Chem. II. xii. 439 Biphosphamide. Formed by the action of heat on dry phosphamide.

1870 Proc. Royal Soc. 1869–70 18 350 Nitrates derived from amines and amides, which, in the present state of our knowledge of the phosphamides, it was evidently advisable to exclude.

1951 Analyt. Chem. 23 1036/2 Like benzoyl phosphamide.., acetyl phosphamide appears to be relatively stable in aqueous solution.

2004 Internat. Jrnl. Mass Spectrometry 231 147/2 For phosphamides, P–N hydrolysis is more probable at low pH (e.g., below 2), while nucleophilic displacement of the amide moiety by a hydroxyl anion can occur at higher pH values.

This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	phosphamide
释义	phosphamiden. Brit. /ˈfɒsfəmʌɪd/, U.S. /ˈfɑsfəˌmaɪd/ Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: phospho- comb. form, amide n. Etymology: < phospho- comb. form + amide n., after French phosphamide (C. Gerhardt 1846, in Ann. de chim. et de physique 18 194). Compare German Phosphamid (1846). Compare slightly later phosphoramide n. Chemistry. Any of a large group of compounds containing a phosphorus atom bonded to an oxygen atom and to one or more (often substituted) amine groups. Cf. phosphoramide n. ΚΠ 1849 H. Watts tr. L. Gmelin Hand-bk. Chem. II. xii. 439 Biphosphamide. Formed by the action of heat on dry phosphamide. 1870 Proc. Royal Soc. 1869–70 18 350 Nitrates derived from amines and amides, which, in the present state of our knowledge of the phosphamides, it was evidently advisable to exclude. 1951 Analyt. Chem. 23 1036/2 Like benzoyl phosphamide.., acetyl phosphamide appears to be relatively stable in aqueous solution. 2004 Internat. Jrnl. Mass Spectrometry 231 147/2 For phosphamides, P–N hydrolysis is more probable at low pH (e.g., below 2), while nucleophilic displacement of the amide moiety by a hydroxyl anion can occur at higher pH values. This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1849
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