Acyl-phenoxy-propanesulfoacids and salts, and artificial sweeten

Details Acyl-phenoxy-propanesulfoacids and salts, and artificial sweeten Acyl-phenoxy-propanesulfoacids and salts, and artificial sweeten

1976-12-01

1978-05-30

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

426548, C07C14324, A23L 1236

Patent

active

040923460

ABSTRACT:
Compounds of the formula (1), or their salts, ##STR1## are prepared as follows: (A) A COMPOUND OF THE FORMULA (II) ##STR2## is reduced; or (B) A COMPOUND OF THE FORMULA (III) ##STR3## is reacted, e.g. after protecting the phenolic hydroxy group attached to position 3 of the ring, with a compound of the formula (IV), ##STR4## or (C) GROUP R.sup.1 of a compound of the formula (V) ##STR5## is removed in an acidic medium, AND, IF DESIRED, THE COMPOUND OF THE FORMULA (I) is converted into salt, or a salt of a compound of the formula (I) is converted into the free acid or another salt thereof.
The compounds of the formula (I) and their salts are valuable artificial sweetening agents.
In the above formulae

REFERENCES:
patent: 3522236 (1970-07-01), Krbechek et al.
patent: 3739064 (1973-06-01), Rizzi
patent: 3787442 (1974-01-01), Wendt et al.
patent: 3826856 (1974-07-01), Horowitz et al.
patent: 3956375 (1976-05-01), Farkas et al.
patent: 3974299 (1976-08-01), Crosby et al.
patent: 3976687 (1976-08-01), Crosby et al.

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