2,4,8,10-tetraoxa-3,9-dithiaspiro[5.5]undecane 3,9-dioxide synthesis
- Product Name:2,4,8,10-tetraoxa-3,9-dithiaspiro[5.5]undecane 3,9-dioxide
- CAS Number:3670-93-7
- Molecular formula:C5H8O6S2
- Molecular Weight:228.24
115-77-5
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Yield:3670-93-7 95.4%
Reaction Conditions:
with dichlorosulfoxide in toluene at 75 - 80; for 24 h;
Steps:
1.1; 2.1; 3.1 Step 1: Preparation of sulfoxide B
In a 500mL reaction flask, add pentaerythritol (30.0g, 220.5mmol),Toluene 195.0g and thionyl chloride (63.0g, 529mmol), after stirring uniformly,The reaction system slowly rises to 75-80°C, and continues to react at this temperature for 24 hours,TLC detects that the raw material reaction is complete. Stop the reaction and reduce the reaction system to 0-5°C,A large amount of solids were precipitated, filtered with suction, and dried to obtain 48.0 g of off-white solids with a yield of 95.4%.
References:
CN112592353,2021,A Location in patent:Paragraph 0027-0029; 0032-0034; 0037-0039
