Dasgupta, Ayan et al. published their research in Chemistry – A European Journal in 2022 | CAS: 2387-23-7

1,3-Dicyclohexylurea (cas: 2387-23-7) belongs to amides. The amide group is called a peptide bond when it is part of the main chain of a protein, and an isopeptide bond when it occurs in a side chain, such as in the amino acids asparagine and glutamine. Amides can be recrystallised from large quantities of water, ethanol, ethanol/ether, aqueous ethanol, chloroform/toluene, chloroform or acetic acid. The likely impurities are the parent acids or the alkyl esters from which they have been made. The former can be removed by thorough washing with aqueous ammonia followed by recrystallisation, whereas elimination of the latter is by trituration or recrystallisation from an organic solvent.Formula: C13H24N2O

Lewis Acid Assisted Broensted Acid Catalysed Decarbonylation of Isocyanates: A Combined DFT and Experimental Study was written by Dasgupta, Ayan;van Ingen, Yara;Guerzoni, Michael G.;Farshadfar, Kaveh;Rawson, Jeremy M.;Richards, Emma;Ariafard, Alireza;Melen, Rebecca L.. And the article was included in Chemistry – A European Journal in 2022.Formula: C13H24N2O This article mentions the following:

An efficient and mild reaction protocol for the decarbonylation of isocyanates was developed using catalytic amounts of Lewis acidic boranes. The electronic nature (electron withdrawing, electron neutral, and electron donating) and the position of the substituents (ortho/meta/para) bound to isocyanate controls the chain length and composition of the products formed in the reaction. Detailed DFT studies were undertaken to account for the formation of the mono/di-carboxamidation products and benzoxazolone compounds In the experiment, the researchers used many compounds, for example, 1,3-Dicyclohexylurea (cas: 2387-23-7Formula: C13H24N2O).

1,3-Dicyclohexylurea (cas: 2387-23-7) belongs to amides. The amide group is called a peptide bond when it is part of the main chain of a protein, and an isopeptide bond when it occurs in a side chain, such as in the amino acids asparagine and glutamine. Amides can be recrystallised from large quantities of water, ethanol, ethanol/ether, aqueous ethanol, chloroform/toluene, chloroform or acetic acid. The likely impurities are the parent acids or the alkyl esters from which they have been made. The former can be removed by thorough washing with aqueous ammonia followed by recrystallisation, whereas elimination of the latter is by trituration or recrystallisation from an organic solvent.Formula: C13H24N2O

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics