| 释义 |
silyl Chem.|ˈsaɪlaɪl, -lɪl|
[f. silane + -yl.]
The univalent group or radical {b1}SiH3; any substituted derivative of this, esp. one in which alkyl groups replace the hydrogen atoms. Usu. attrib.
1916Jrnl. Chem. Soc. CX. ii. 319 The radicles ·SiH3, ·Si2H5, and ·Si2H3 would be respectively designated silyl, disilyl, and disilenyl. 1939Ibid. 1030 Some of the other possible reactions of the silyl radicals are more favoured than that with ethylene. 1970Nature 25 July 335/2 The preparation of silylated ylides of phosphorus, arsenic and sulphur, in which the silyl group is both a stabilizing and an efficient leaving group.
Hence silyˈlation, a reaction or process in which a substance is converted into a form having silyl substituents; also ˈsilylate v. trans., to subject to silylation; ˈsilylated ppl. a.; ˈsilylating vbl. n.
1938Nature 3 Dec. 997/1 Trimethylsilylammonium chloride is a convenient silylating agent. 1949Chem. Abstr. Subject Index 1937–1946 8856/2 Silylation. 1966Jrnl. Amer. Chem. Soc. LXXXVIII. 3390/1 Bis(trimethylsilyl)acetamide..is a silylating agent superior, in many respects, to the presently used methods. Ibid. 3390/2 Silylations of ‘good’ acceptors—alcohols, amines, carboxylic acids—can be carried out with monosilylamides since the rapidly established equilibria lie far on the product side. Ibid. 3391/1 The vapor pressure of the silylated product. 1969Kirk-Othmer Encycl. Chem. Technol. (ed. 2) XVIII. 262 A method of silylating biologically active compounds. 1972Science 12 May 683/3 Silylation was effected in pyridine with a mixture of hexamethyldisilazane and trimethylchlorosilane. 1978Experientia XXXIV. 1380/1 The material..was silylated with 200µl of trimethylsilylimidazole at 65°C for 12–15h. |