Purity |
98% Min. |
Storage |
-20 ± 5 ºC |
* The above information is for reference only.
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Chemical Name |
Diphenyldiazomethane resin (200-400 mesh) |
Synonyms |
PDDM resin;Ph-CN₂-Ph-polymer |
Diphenyldiazomethane was used industrially for producing benzhydryl esters (diphenylmethyl esters) of β-lactam antibiotics. This "polymeric diphenyldiazomethane" readily reacts with carboxylic acids, e.g. Fmoc-amino acids, which need not to be activated. Products can be cleaved from this very acid-sensitive resin derivative with 1-5 % TFA in dichloromethane.
Fmoc-α-amino alcohols can be anchored to PDDM in the presence of BF₃ etherate. As the resulting benzhydryl ethers can be cleaved with 1% TFA/DCM, fully protected peptide alcohols can be obtained.