1,3,3,6,6,8,11,13,13,16,16,18-dodecamethyl-1,2,7,8,11,12,17,18-octaaza-3,6,13,16-tetrasilacycloicosane 、
二氧化碳 反应 2.0h,
以97%的产率得到2,2,5,5,9,12,16,16,19,19,23,26-dodecamethyl-1,6,15,20-tetraoxa-8,9,12,13,22,23,26,27-octaaza-2,5,16,19-tetrasilacyclooctacosane-7,14,21,28-tetraone