Chemoselective Ullmann coupling at room temperature: a facile access to 2-aminobenzo[b]thiophenes was written by Janni, Manojkumar;Thirupathi, Annaram;Arora, Sahil;Peruncheralathan, S.. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2017.COA of Formula: C4H7NS The following contents are mentioned in the article:
Various functionalized 2-aminobenzo[b]thiophenes were synthesized at room temperature by the Ullmann coupling reaction for the first time. The enantiospecific coupling reaction was further demonstrated without loss of optical purity. The newly synthesized 2-anilino-3-cyano-benzo[b]thiophenes were transformed into 11-amino-benzothieno[2,3-b]quinolines in the presence of triflic acid. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8COA of Formula: C4H7NS).
Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.COA of Formula: C4H7NS
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics