4-HYDRAZINOTHIENO[2,3-D]PYRIMIDINE synthesis
- Product Name:4-HYDRAZINOTHIENO[2,3-D]PYRIMIDINE
- CAS Number:14080-58-1
- Molecular formula:C6H6N4S
- Molecular Weight:166.2
![4-CHLOROTHIENO[2,3-D]PYRIMIDINE](/CAS/GIF/14080-59-2.gif)
14080-59-2
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Yield:14080-58-1 91.3%
Reaction Conditions:
with hydrazine at 80; for 2 h;
Steps:
142.A A.
4-hydrazinylthieno[2,3-d]pyrimidine, 142a
A solution of 4-chlorothieno[2,3-d]pyrimidine (450 mg, 2.64 mmol) in hydrazine (5 mL, 98%) was stirred at 80° C. for 2 h.
The solid was filtered and washed by 2 mL water.
The solid was collected and dried to afford 4-hydrazinylthieno[2,3-d]pyrimidine, 142a (400 mg, 91.3% yield) as a white solid. LCMS (ESI) m/z M+1: 166.9.
References:
US2018/170909,2018,A1 Location in patent:Paragraph 1587; 1588
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![Thieno[2,3-d]pyrimidin-4(3H)one](/CAS/GIF/14080-50-3.gif)
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