OCO and NCO chelated derivatives of heavier group 15 elements. Study on possibility of cyclization reaction via intramolecular ether bond cleavage
作者:Libor Dostál、Roman Jambor、Aleš Růžička、Robert Jirásko、Jaroslav Holeček、Frank De Proft
DOI:10.1039/c1dt10234f
日期:——
[2,6-(ROCH(2))(2)C(6)H(3)](-), where R = Me (L(1)), mesityl (L(2)), t-Bu (L(3)) or novel NCO ligand [2-(Me(2)NCH(2))-6-(t-BuOCH(2))C(6)H(3)](-) was studied. The reaction of L(4)Li with PCl(3) resulted in isolation of [2-(OCH(2))-6-(Me(2)NCH(2))C(6)H(3)]PCl (1) as a result of intramolecular ether bond cleavage and elimination of t-BuCl. The conversion between the organolithium compounds L(1,2,4)Li and
一组四个夹钳配体,即OCO型配体L(1-3)[2,6-(ROCH(2))(2)C(6)H(3)](-),其中R = Me( L(1)),mesityl(L(2)),t-Bu(L(3))或新型NCO配体[2-(Me(2)NCH(2))-6-(t-BuOCH(2) )C(6)H(3)](-)进行了研究。L(4)Li与PC1(3)的反应导致分离出[2-(OCH(2))-6-(Me(2)NCH(2))C(6)H(3)] PC1( 1)由于分子内醚键的裂解和t-BuCl的消除。有机锂化合物L(1,2,4)Li和AsCl(3)之间的转化导致所需的氯化物,即(L(1))(2)AsCl(2),L(2)AsCl(2)( 3),L(4)AsCl(2)(5),但使用L(3)Li化合物进行类似反应得到[2-(OCH(2))-6-(t-BuOCH(2))C( 6)H(3)] AsCl(4)作为分子内环化的结果。通过