Triazabicyclodecene

Triazabicyclodecene or 1,5,7-Triazabicyclo[4.4.0]dec-5-ene or TBD C7H13N3 is an organic compound and a guanidine. it is used in organic chemistry as a catalyst. The compound is strongly basic with a pKa of the conjugate acid of 26. It has been used as a catalyst in Michael reactions, Wittig reactions, Henry reactions and in transesterification.

In one study TBD is used as a catalyst in the ring opening polymerization of caprolactone to polycaprolactone (Scheme 1 ). TBD acts as a bifunctional catalyst with simultaneous acyl transfer and hydrogen bonding.



The compound is structurally related to DBU.