Diarylcarbodiimides insertion reactions

Diarylcarbodiimides also insert into B—Cl, B—OR, B—SR and B—NR2 bonds. Examples include insertions into BCI3, RBCI2 and R2BC1. Sometimes double insertion reactions occur. BCI3 reacts with two equivalents of Carbodiimide to give the double insertion product 394. 

Insertion reactions of carbodiimides are also observed with Sn—OR or Sn—NR2 bonds. For example, reaction of tributyltinmethoxide 405 with diarylcarbodiimides affords the expected insertion product 406. °... 

Triphenylleadmethoxide 409 also undergoes an insertion reaction with diarylcarbodiimides to give 410. ... 

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