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ChemicalBook CAS DataBase List Diphenyl sulfide

Diphenyl sulfide synthesis

15synthesis methods
-

Yield:139-66-2 99%

Reaction Conditions:

with potassium tert-butylate;nickel 1,3-dibenzylimidazolidene in N,N-dimethyl-formamide at 110; for 16 h;Product distribution / selectivity;

Steps:

3

Different substrates were investigated(C)2-Ni catalyst Excellent activities for deactivated aryl iodides were observed. Quantitative yields were observed by using 1-1.5 mol% of Wi catalyst in DMP at 80oC for thiophenol (Table 4, entries 1-2) . For electron-rich aryl bromides, high activities were observed for (C)2-Ni. Low conversions and byproducts were observed for reactions of thiophenol with weaker bases (e.g., carbonate or phosphate) . Conversions of less than 50% are considered as low conversion. When KOtBu (or NaOtBu) was used as the base, good to excellent yields were observed for various substrates with 3-4 mol% of Ni catalyst {Table 4, entries 3-12). Good yield was also observed with alkyl thiol (Table 4, entry 13).

References:

WO2008/136770,2008,A1 Location in patent:Page/Page column 30-32

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