4-Hydroxybenzaldehyde → HCID 309278, compound
Reaction equation
[NH2:1][CH2:2]CS(O)(=O)=O.[C:8]1([CH3:16])[CH:13]=[CH:12][C:11]([CH:14]=O)=[CH:10][CH:9]=1.[NH2:17][CH2:18][C:19]([OH:21])=O.[OH:22]C1C=CC(C=O)=CC=1>>[CH3:16][C:8]1[CH:13]=[CH:12][C:11]([CH:14]=[C:18]2[NH:17][C:2](=[O:22])[NH:1][C:19]2=[O:21])=[CH:10][CH:9]=1Participants
5
Procedure
5-(p-Methylbenzylidene)-hydantoin was prepared in the same manner as in Example 4, except that 31.3 g (0.25 mol) of taurine and 60.0 g (0.50 mol) of p-tolualdehyde were used in lieu of glycine and p-hydroxybenzaldehyde, respectively. During the reaction, the pH of the reaction mixture was 9.8 to 9.6.
Workup
- customDuring the reaction
Sources & evidence
- ORD record
- ord-570b58f4dcdb49a49453d63146f5b2f5
- Source dataset
- uspto-grants-1987_06
- Patent number
- US04672127
Reaction notes
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