Tin tetrachloride synthesis
- Product Name:Tin tetrachloride
- CAS Number:7646-78-8
- Molecular formula:Cl4Sn
- Molecular Weight:260.52
![1H,3H-Naphtho[1,8-cd]pyran-1,3-dione, 5-nitro-6-[(phenylmethyl)thio]-](/CAS/20210305/GIF/625836-84-2.gif)
![1H,3H-Naphtho[1,8-cd]pyran-1,3-dione, 5-amino-6-[(phenylmethyl)thio]-](/CAS/20210305/GIF/625836-85-3.gif)
Yield:-
Reaction Conditions:
with hydrogenchloride;tin(ll) chloride in water at 90; for 2 h;
Steps:
9.1
(1)4-benzylsulhydryl-3-nitro-1,8-naphthalic anhydride 4-bromo-3-nitro-1,8-naphthalic anhydride (0.0072mol) (4) was dissolved in DMF (45ml) in 100 ml of three-neck flask. After addition of K2CO3 (0.0036mol) and benzyl sulfhydrate (0.0072mol), the solution was stirred at 80°C for 8h until there was no raw material. The reaction mixture was poured into ice-water, then salted out under stirring. A yellow solid precipitated after filtration and washing by water and dried to give khaki solid (2.47g, 83%): mp 188-193°C (uncorrected).
References:
EP1626050,2006,A1 Location in patent:Page/Page column 8
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