英语词汇“ketoketen”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

> as lemmas

ketoketen

ketoketen n.

Brit.

/ˌkiːtə(ʊ)ˈkiːtn/

/ˌkiːtə(ʊ)ˈkiːtiːn/

U.S.

/ˌkidoʊˈkitn/

/ˌkidoʊˈkiˌtin/

(also ketoˈketene) [ < German ketoketen (Staudinger & Klever 1908, in Berichte der Deutsch. Chem. Ges. 41 909)] any ketene of the type RR′C:C:O.

ΚΠ

1908 Jrnl. Chem. Soc. 94 i. 318 The first groups are termed aldo-ketens and the second, keto-ketens.

1937 F. C. Whitmore Org. Chem. 281 The ketoketenes are colored, are easily auto-oxidized to give peroxides, and form addition cpds. with cyclic tertiary amines.

1951 I. L. Finar Org. Chem. I. xii. 230 If the compound is of the type R·CH:C:O, it is known as an aldoketen; and if R₂C:C:O, then a ketoketen.

extracted from keto-comb. form

as lemmas

单词	ketoketen
释义	> as lemmas ketoketen ketoketen n. Brit. /ˌkiːtə(ʊ)ˈkiːtn/ , /ˌkiːtə(ʊ)ˈkiːtiːn/ , U.S. /ˌkidoʊˈkitn/ , /ˌkidoʊˈkiˌtin/ (also ketoˈketene) [ < German ketoketen (Staudinger & Klever 1908, in Berichte der Deutsch. Chem. Ges. 41 909)] any ketene of the type RR′C:C:O. ΚΠ 1908 Jrnl. Chem. Soc. 94 i. 318 The first groups are termed aldo-ketens and the second, keto-ketens. 1937 F. C. Whitmore Org. Chem. 281 The ketoketenes are colored, are easily auto-oxidized to give peroxides, and form addition cpds. with cyclic tertiary amines. 1951 I. L. Finar Org. Chem. I. xii. 230 If the compound is of the type R·CH:C:O, it is known as an aldoketen; and if R₂C:C:O, then a ketoketen. extracted from keto-comb. form < as lemmas
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