Nano sized silica supported DABCO based amphoteric ionic liquid coated combined catalytic system Nano-SiO₂@[DABCO(CH₂CH₂CO₂H)]⁺[Br]⁻ has been synthesised in a very simple and convenient way. This newly synthesised SCILL has been characterised via FT-IR, SEM, HRTEM and EDAX spectra. The high efficiency of this catalyst was unquestionably recognised when 31 new thiol induced penta-substituted pyrroles were synthesised in water via two different schemes in high yields. This recyclable, quasi heterogeneous catalyst shows synergetic catalytic effect of acidic nano sized silica particles and amphoteric DABCO based ionic liquid.

纳米二氧化硅负载的DABCO基两性离子液体涂覆的复合催化体系Nano-SiO ₂ @ [DABCO（CH ₂ CH ₂ CO ₂ H）] ⁺ [Br] ^-的合成非常简单方便。这种新合成的SCILL已通过FT-IR，SEM，HRTEM和EDAX光谱进行了表征。当通过两种不同的方法以高收率在水中合成31种新的硫醇诱导的五取代的吡咯时，无疑会意识到这种催化剂的高效率。这种可回收的准多相催化剂显示出酸性纳米二氧化硅颗粒和基于两性DABCO的离子液体的协同催化作用。