Sodium Hydroxide → Spiro(cyclopentane-1,2'(1'H)-(1,3,5)triazino(1,2-a)benzimidazol)-4'(3'H)-one, 3'-methyl-

Participants

Reaction Steps

The reaction product of Example 26 was hydrolyzed by 10% aqueous sodium hydroxide and THF to give the title compound, employing the procedure of Example 1, paragraph 2. The product was recrystallized from acetone to give a solid, mp 180°-182° C. The confirmatory elemental analysis is shown in Table III.

Provenance & Evidence