Reactions of (Et<sub>2</sub>NCH<sub>2</sub>CH<sub>2</sub>NEt<sub>2</sub>)·H<sub>2</sub>SiCl<sub>2</sub> with Selected Diorganometallic Reagents of Magnesium and Lithium
作者:Joyce Y. Corey、Kevin A. Trankler、Janet Braddock-Wilking、Nigam P. Rath
DOI:10.1021/om100544f
日期:2010.11.8
absence of CH2Cl2 the major product produced from 1 was the spirocycle 2,2′,7,7′-tetra-tert-butyl-9,9′-spirobi[9H-9-silafluorene] both in a solvent-free form (5′) and as an ethanol solvate (5), both of which were crystallographically characterized. The spirocycle 2,2′,5,5′,8,8′-hexamethyl-5,10-dihydro-10,10-spirobiphenazasiline (6) was formed from the reaction of the dilithio reagent of 2 in the absence
将不溶于THF的二格氏试剂从2,2'-二溴-4,4'-叔丁基联苯(1)加至[(teeda)·H 2 SiCl 2 ]在CH 2 Cl 2 / THF中的溶液中在分离的,重结晶的产率<20%的条件下生产了2,7-二叔丁基-9 H -9硅氟芴(3)。当与[(teeda)·H 2 SiCl 2 ]在CH 2 Cl 2 / Et 2中反应时,由在Et 2 O中形成的双(2-溴-4-甲基苯基)甲胺(2)相关的可溶性二硫代试剂O,得到相似产率的5,10-二氢-2,5,8-三甲基吩唑烷(4)。在不存在的CH 2氯2从产生的主要产物1是螺环2,2',7,7'-四-叔丁基-9,9'-螺二[9 ħ -9- silafluorene]无论是在一个无溶剂形式(5 ')和作为乙醇溶剂化物(5),均在晶体学上进行了表征。螺环2,2',5,5',8,8'-六甲基-5,10-二氢-10,10-螺联苯氮杂asi啉(6)是由2的二硫代试剂在没有CH