Photosynthesis of mercaptans
AssigneeSociete Nationale Elf Aquitaine (Production)
InventorsJean Ollivier, Guy Souloumiac, Jeannine Suberlucq
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Abstract
Synthesis of mercaptans by the photochemical reaction of an olefin with hydrogen sulphide in the presence of an initiator constituted by benzophenone, thiobenzophenone or a mixture of the two, preferably accompanied by an organic compound of an element of Group VA of the Periodic Classification. These initiators can carry substituents on either or both of the two benzene rings. The light utilized can have a wavelength of 300 to 600 nm. The process allows various mercaptans to be obtained with good yields.
Claims12
In the method of synthesizing a mercaptan by the photochemical reaction between an ethylenically unsaturated compound and hydrogen sulfide, in the presence of a group VA element promoter, the improvement which comprises the reaction medium containing a ketone selected from the group consisting of benzophenone, thiobenzophenone and substituted benzophenones and thiobenzophenones.
Dependencies are inferred from the claim text.