821-79-4

Basic information

• Product Name: N,N'-dipropylcarbodiimide
• Synonyms: N,N'-dipropylcarbodiimide
• CAS NO: 821-79-4
• Molecular Weight: 126.202
• Mol File: 821-79-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: N,N'-dipropylcarbodiimide(CAS DataBase Reference)
• NIST Chemistry Reference: N,N'-dipropylcarbodiimide(821-79-4)
• EPA Substance Registry System: N,N'-dipropylcarbodiimide(821-79-4)

Safety Data

• Hazardous Substances Data: 821-79-4(Hazardous Substances Data)

Upstream product

• 628-30-8 n-Propyl isothiocyanate 

Downstream Products

• 623-95-0 1,3-dipropylurea 
• 110798-02-2 N^G,N^G'-di-n-propyl-D-homoargininate*TsOH 
• 98500-64-2 benzyl N^α-(benzyloxycarbonyl)-N^G,N^G'-di-n-propyl-D-homoargininate*TsOH 

Relevant articles and documents

Selective Formation of Five-Membered Heterocyclic Products by Anodic Oxidation of Alkyl Isothiocyanates (RNCS) in Dichloromethane and Their Thermal Isomerization and Decomposition

Anodic oxidation of primary and secondary alkyl isothiocyanates (RNCS) in dichloromethane yielded two isomers of five-membered heterocyclic products, 4-alkyl-5-(alkylimino)-1,2,4-dithiazolidine-3-one 2 and 2,4-dialkyl-5-oxo-1,2,4-thiadiazolidine-3-thione 3.Their relative ratio was found to be depedent on the length or bulkiness of the alkyl group in RCNS.Isomer 2 was favorable for R = Me and Et and exclusive for R = n-Pr, n-Bu, and cyclohexyl.Upon GLC injection (at 150-200 deg C), compounds of type 2 isomerized completely to 3 (when R = Me, Et), mostly to 3 and partially decomposed to RN=C=NR (11) (when R = n-Pr, n-Bu), and exclusively decomposed to 11 for R = cyclohexyl.Tertiary RNCS did not yield cyclic products but instead underwent chlorination to substitute a hydrogen (or "NCS" group) by chlorine.Plausible mechanistic schemes are suggested and discussed.