Ethylene Glycol → HCID 21968522, compound
Reaction equation
[CH3:1][N:2]1[C@H:16]2[C@@:6]([O:18][CH3:19])([C:7]3[CH:8]=[CH:9][CH:10]=[C:11]4[C:17]=3[C:14]([CH2:15]2)=[CH:13][NH:12]4)[CH2:5][C@@H:4]([CH2:20][OH:21])[CH2:3]1.S(=O)(=O)(O)O.[Na].C(O)[CH2:29][OH:30]>>[CH3:1][N:2]1[C@H:16]2[C@@:6]([O:18][CH2:19][CH2:29][OH:30])([C:7]3[CH:8]=[CH:9][CH:10]=[C:11]4[C:17]=3[C:14]([CH2:15]2)=[CH:13][NH:12]4)[CH2:5][C@@H:4]([CH2:20][OH:21])[CH2:3]1Participants
5
Procedure
A stirred solution of 10 g of 6-methyl-8β-hydroxymethyl-10α-methoxy-ergoline in 100 ml of ethylen glycol was treated with 7.5 ml of concentrated sulphuric acid at room temperature. After stirring for 3 hour, the solution was poured into ice water then made alkaline with concentrated sodium hydroxyde. The precipitated was collected washed with water, and crystallised from ehanol to provide the title compound in 75% yield, m.p. 201-205° C.
Workup
- customThe precipitated was collected
- washwashed with water
- customcrystallised from ehanol
Sources & evidence
- ORD record
- ord-79ae1dcbdf3f4944a9f6c7ee390e537b
- Source dataset
- uspto-grants-2000_05
- Patent number
- US06060483
Reaction notes
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