Synthesis of 1,4,3-Oxathiazine-4,4-dioxides and 1,2,4-Thiadiazine-1,1-dioxides from 1,3-Acetonebis(sulfonylchloride) 1 reacts with N,N-dialkylcyanamides 2 at 80°C to give the 1,4,3-oxathiazine 4,4-dioxides 5a-e, which are converted with N- and S-nucleophiles 6 to the substitution products 7a-f. At room temperature 1 reacts with 2 and amines 8 to the sulfonamides 9a-i. The 1,2,4-thiadiazine 1,1-dioxides 10a-c are obtained from 9e-g and ammonia. X-ray analysis of compound 5a was carried out.
1,4,3-噁噻氮杂环-4,4-二氧化物和1,2,4-噻二氮-1,1-二氧化物的合成来自于1,3-乙酮双(
磺酰氯) 1与N,N-二烷基
氰胺 2 在80°C下反应,生成1,4,3-噁噻氮杂环-4,4-二氧化物 5a-e,随后用N-和S-亲核试剂 6 转化为取代产物 7a-f。在室温下,1与2和胺 8 反应生成
磺胺 9a-i。1,2,4-噻二氮-1,1-二氧化物 10a-c 由9e-g和
氨获得。对化合物5a进行了X射线分析。