a-Hydroxyalkanesulfonates were prepd. by the addn. of SO2 gas to a soln 0.95-1.0:1 soln. of aldehyde and alkali at such a rate as to maintain a pH of 3.0-4.5. Thus, SO2 was added to a soln. of NaOH and HCHO to give HOCH2SO3Na practically free of ionic impurities. [on SciFinder (R)]
5938608
CAN 86:120782
23-12
Aliphatic Compounds
Patent
written in German.
19761202
111-30-8P; 870-72-4P Role: SPN (Synthetic preparation), PREP (Preparation) (prepn. of); 50-00-0 Role: RCT (Reactant), RACT (Reactant or reagent) (sulfonation of, hydroxymethanesulfonate from)
Alternative title(s) : (ol) Werkwijze voor de bereiding van alifatische (alpha)-hydroxysulfonaten.
| Identifier | Country code | Kind code | Date issued |
FR2300759 | FR | B1 | 1979-06-01 |
DE2505705 | DE | B2 | 1977-03-17 |
DE2505705 | DE | A1 | 1976-12-02 |
FR2300759 | FR | A1 | 1976-09-10 |
NL7601239 | NL | A | 1976-08-16 |
BE838493 | BE | A | 1976-08-12 |