2LiCl. The resulting bis-organozinc species react with various electrophiles; subsequent functionalization via a second metallation proceeds readily; further reactions with hydrazine lead to highly substituted pyrazolo[3,4-c]pyridazines derivatives.
3,6-二氯哒嗪使用(tmp)2Zn.2MgCl2.2LiCl进行平滑的
金属化反应。生成的双
有机锌物质与各种亲电试剂反应;经由第二
金属化的后续官能化容易进行;与
肼的进一步反应导致高度取代的
吡唑并[3,4-c]
哒嗪衍
生物。