cyclo-dodecasulfur

Base Information

• Chemical Name: cyclo-dodecasulfur
• CAS No.: 14999-38-3
• Molecular Formula: S₁₂
• Molecular Weight: 384.792
• Mol file: 14999-38-3.mol

Synonyms:cyclo-dodecasulfur

Chemical Property of cyclo-dodecasulfur

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of cyclo-dodecasulfur

There total 10 articles about cyclo-dodecasulfur which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 36.0%

disulfur dichloride (10025-67-9) + potassium iodide (7681-11-0) → sulfur (10544-50-0) + hexasulfur (13798-23-7) + cyclo-dodecasulfur (14999-38-3) + S20 (42817-30-1) + S18 (41371-12-4)

Guidance literature:

In carbon disulfide; water; byproducts: S(x); CS2 soln. of S2Cl2 shaked with aq. KI soln. for 5 min, standing at 20°C for ca 15 min, org. phase sepd., washed with Na2S2O3 soln. (elimination of I2) various S contg. CS2 soln. sepd., dried with CaCl2, filtered,; concd. in vac. at 20°C to small volume, n-pentane added, oily by-products sepd., decanted soln. cooled to -78°C, S6 crystd. together with S8, purifn. repeated recrystn. from CS2 at -78°C give S6, all products sepd.;

Reference yield: 14.0%

(N,N,N′,N′-tetramethylethylenediamine)zinc hexasulfide (162557-46-2) + octasulfur dichloride (12182-73-9) + S6Cl2 → zinc dichloro(N,N,N′,N′-tetramethylethylenediamine) (28308-00-1) + cyclo-dodecasulfur (14999-38-3) + cyclo-tetradecasulfur (60349-29-3)

Guidance literature:

In carbon disulfide; N2 atmosphere; dropwise addn. of soln. of S8Cl2 to soln. of Zn complex (0°C), alloe to warm to 20°C (over 1 h), pptn. of (tmeda)ZnCl2; filtration off of (tmeda)ZnCl2, addn. of P4O10 to filtrate, addn. of CHCl3 (pptn. of S12), cooling (-35°C), filtration, addn. of CHCl3 (-35°C; crystn. for several days);

DOI:10.1002/(SICI)1521-3773(19980918)37:17<2377::AID-ANIE2377>3.0.CO;2-O

Reference yield:

(N,N,N′,N′-tetramethylethylenediamine)zinc hexasulfide (162557-46-2) → sulfur (10544-50-0) + cyclo-dodecasulfur (14999-38-3)

Guidance literature:

With bromine; In chlorobenzene; at -5 ℃; for 2.16667h; Solvent; Overall yield = 94.12 g;

upstream raw materials:

carbon disulfide

hexasulfur

disulfur dichloride

potassium iodide

Downstream raw materials:

sulfur

hexasulfur

sulfur