Herbert Meier, Axel Mayer, Dieter Gröschl "Benzothietes—versatile Synthons For The Preparation Of Heterocycles" Sulfur Reports, 1994, volume 16, 23-56, doi:10.1080/01961779408048965
Thomas C. Sedergran and Donald C. Dittmer "Thiete 1,1-dioxide and Chlorothiete 1,1-dioxide" Org. Synth. 1984, vol. 62, 210.doi:10.15227/orgsyn.062.0210