3,4-Dimethoxy-1,2,5-thiadiazole 1,1-dioxide → N'-(4-methoxy-1,1-dioxo-1,2,5-thiadiazol-3-yl)-N,N-dimethylhex-2-yne-1,6-diamine
Reaction equation
[CH3:1][O:2][C:3]1[C:7](OC)=[N:6][S:5](=[O:11])(=[O:10])[N:4]=1.[CH3:12][N:13]([CH3:21])[CH2:14][C:15]#[C:16][CH2:17][CH2:18][CH2:19][NH2:20]>>[CH3:1][O:2][C:3]1[C:7]([NH:20][CH2:19][CH2:18][CH2:17][C:16]#[C:15][CH2:14][N:13]([CH3:21])[CH3:12])=[N:6][S:5](=[O:11])(=[O:10])[N:4]=1Participants
3
Procedure
In a similar manner to Example 1, 3,4-dimethoxy-1,2,5-thiadiazole-1,1-dioxide (1.0 g) and 6-(dimethylamino)hex-4ynylamine (0.79 g) were reacted to give a solution of 3-methoxy-4-[6-dimethylaminohex-4-ynylamino]-1,2,5-thiadiazole-1,1-dioxide. Reaction with ammonia and purification as in Example 1 gave the title compound (0.62 g), m.p. 183°-5° C. (recrystallisation from acetonitrile).
Sources & evidence
- ORD record
- ord-ce5edd3be2da405895aa91ece6253f2c
- Source dataset
- uspto-grants-1988_03
- Patent number
- US04732980
Reaction notes
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