Efficient Method for the Synthesis of Benzimidazoquinazoline Derivatives with Three-Point Diversity was written by Saha, Biswajit;Sharma, Sunil;Kundu, Bijoy. And the article was included in Synthetic Communications in 2007.SDS of cas: 2740-88-7 This article mentions the following:
An efficient strategy for the preparation of a novel heterocyclic ring system of benzimidazoquinazolines with three-point diversity has been described. The compounds were obtained by treating o-phenylenediamine derivatives with o-nitrobenzaldehyde to give benzimidazole derivatives, followed by reduction of the nitro group to give an amine. Derivatization of the resulting amine with isothiocyanates followed by in situ cyclodesulfurization at rt furnished the title compounds in high yields and purity. In the experiment, the researchers used many compounds, for example, 4-Fluorobenzylisothiocyanate (cas: 2740-88-7SDS of cas: 2740-88-7).
4-Fluorobenzylisothiocyanate (cas: 2740-88-7) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.SDS of cas: 2740-88-7
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics