Process for the sulfurization of a phosphorus-containing...

Details Process for the sulfurization of a phosphorus-containing... Process for the sulfurization of a phosphorus-containing...

2006-08-29

2006-08-29

Jiang, Shaojia Anna (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C536S025340, C548S123000, C548S128000

Reexamination Certificate

active

07098325

ABSTRACT:
The invention relates to a process for the sulfurization of phosphorus-containing compounds which comprises contacting the phosphorus compound to be sulfurized with a sulfur transfer reagent of formula (I)whereinR1is aryl which can be substituted by halo, (C1–C6) alkyl or (C1-C6) alkoxy, andR2is (C1–C6) alkyl, which could also form a cyclic ring together with R1, in a solvent or a mixture of solvents.

REFERENCES:
patent: 5003097 (1991-03-01), Beaucage et al.
patent: 6096881 (2000-08-01), Han et al.
patent: WO 97 41130 (1997-11-01), None
patent: WO 98 54198 (1998-12-01), None
Chemical Abstract 1974:107961 CAPLUS -Full-text.
Chemical Abstracts 83:193333.

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