Synthesis of 5′-Chlorospiro(benzo[ d ][1,3]dioxole-2,4′-[1,2,6]thiadiazin)-3′-amine and 10-Chloro-1,4-dioxa-8-thia-7,9-diazaspiro[4.5]deca-6,9-dien-6-amine. - Kalogirou, Andreas S.; Koutentis, Panayiotis A. (Molbank, 2026)