Propargyl bromide → 5-(Prop-2-yn-1-yl)thiopyrano[3,2-b]indol-4(5H)-one
Reaction equation
[S:1]1[C:13]2[C:12]3[CH:11]=[CH:10][CH:9]=[CH:8][C:7]=3[NH:6][C:5]=2[C:4](=[O:14])[CH:3]=[CH:2]1.[CH2:15](Br)[C:16]#[CH:17]>>[CH2:17]([N:6]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:12]=2[C:13]2[S:1][CH:2]=[CH:3][C:4](=[O:14])[C:5]1=2)[C:16]#[CH:15]Participants
3
Procedure
By the same method as described in Example 7, 4.8 g of thiopyrano[3,2-b]indol-4(5H)-one is alkylated with propargyl bromide to give 5.0 g of product, mp 144° C. after recrystallization from methylene chloride-ether.
Sources & evidence
- ORD record
- ord-1ee2e6c7d55d478b97d8e42aa6b7daeb
- Source dataset
- uspto-grants-1977_06
- Patent number
- US04032537
Reaction notes
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