Isoindoles occupy a particular place in the chemistry of heterocyclic compounds [1, 2]. Some isoindole derivatives were found to exhibit antihypertensive, antidiabetic, and antibacterial activity [3, 4]. Polymeric composite materials based on isoindoles and methanoisoindoles are used in optoelectronics as fluorescent sensors and laser dyes [5, 6]. Aromatic character and high reactivity of isoindoles make them convenient model substrates for theoretical ...