The Study of Y-Aromaticity. IV. Tridentenes with Irregular Arm Lengths

To increase the number of synthetic targets having Y-aromaticity, we proposed ( n, l, m )-tridentenes, in which the lengths of the three linear conjugated systems, extending from the central atom of the Y-shaped structure of n-tridentene were made irregular. The calculation results obtained using the semiempirical molecular orbital method suggested the existence of a compound that is energetically stabilized and 43 compounds with expectable kinetic stability.