SYNTHESIS OF TETRAPHENYLSTANNACYCLOPENTADIENES (STANNOLES). 2. DERIVATIVES AND ADDUCTS OF 1,1-DIHALO-2,3,4,5-TETRAPHENYLSTANNOLES
SYNTHESIS OF TETRAPHENYLSTANNACYCLOPENTADIENES (STANNOLES). 2. DERIVATIVES AND ADDUCTS OF 1,1-DIHALO-2,3,4,5-TETRAPHENYLSTANNOLES
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四苯基锡环戊二烯(锡诺)的合成。
DOI:
10.1002/chin.198202264
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发表时间:
1982
期刊:
影响因子:
--
通讯作者:
J. J. Zuckerman
中科院分区:
文献类型:
--
作者:
W. A. Gustavson;L. Principe;W. Rhee;J. J. Zuckerman
SC (S) N (C2H5) 2, N (CH3) 2, and P (C6H5) 2. Fluorination by KF in acetone results in the X= F, Y= Br, or Y= I product only, and lithioamination by LiN [Si (CH3) 3] 2 yields the X= N [Si (CH3) 3] 2, Y= Br product only. Attempted synthesis of the dihalostannoles by halogenation of the intermediate tin (II) stannole from 1, 4-dilithio-l, 2, 3, 4-tetraphenyl-l, 3-butadiene and tin (II) chloride yields only the ring-opened products (4-bromo-l, 2, 3, 4-tetraphenylbutadienyl) tin tribromide or (4-iodo-l, 2, 3, 4-tetraphenylbutadienyl) tin triiodide. Even gentle chlorination of hexaphenylstannole by elemental chlorine cleaves the ringtin-carbon bonds to form cis. cis-1, 4-dichloro-1, 2, 3, 4-tetraphenyl-1, 3-butadiene and diphenyltin (IV) dichloride, while the action of a glacial acetic acid-acetic anhydride mixture yields tetraphenylfuran and diphenyltin (IV) diacetate. The dihalostannoles form neutral adducts with pyridine, 2, 2'-bipyridyl, and 1, 10-phenanthroline and the double salt [XSnC4 (C6H5) 4'terpy]+[X2YSnC4 (C6H5) 4]~ from 2, 2', 2"-terpyridine where X=