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方案
97%
mp
114-117 °C (lit.)
官能团
bromo
SMILES字符串
Nc1ncc(Br)nc1Br
InChI
1S/C4H3Br2N3/c5-2-1-8-4(7)3(6)9-2/h1H,(H2,7,8)
InChI key
DTLBKXRFWUERQN-UHFFFAOYSA-N
一般描述
2-Amino-3,5-dibromopyrazine can be synthesized from 2-aminopyrazine via bromination using N-bromosuccinimide (NBS). It reacts with sodium dicyanocuprate to form a mixture of mono and dicyanation products. The formation of 2-aminothiazolopyrazines by reacting 2-amino-3,5-dibromopyrazine with isothiocyanates has been reported.
应用
2-Amino-3,5-dibromopyrazine may be used in the synthesis of:
- 2-amino-5-bromopyrazin-3-thiol
- 2-amino-3,5-bis(p-methoxyphenyl)-1,4-pyrazine
- 3,7-dihydroimidazo[1,2a]pyrazine-3-ones
警示用语：
Danger
危险分类
Acute Tox. 3 Oral - Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
储存分类代码
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
法规信息
新产品
Synthesis of 3,7-dihydroimidazo[1,2a]pyrazine-3-ones and their chemiluminescent properties.
Adamczyk M, et al.
Tetrahedron, 59(41), 8129-8142 (2003)
Synthesis of N-Substituted-2-Aminothiazolo [4,5-b] pyrazines by Tandem Reaction of o-Aminohalopyrazines with Isothiocyanates.
Kwak SH, et al.
Bull. Korean Chem. Soc., 33, 4271-4274 (2012)
Synthesis of Tetraaza Derivatives of Benzoxazinophenothiazine.
Ezema BE, et al.
Orient. J. Chem., 31(1), 133-139 (2015)
2,6-Diamino-3,5-diaryl-1,4-pyrazine derivatives as novel antioxidants.
Rees JF and Marchand-Brynaert J
Synthesis, 5, 768-772 (2001)
Studies on pyrazines. XX, A simple synthesis of 5-substituted 2-amino-3-cyanopyrazines: useful intermediates for pteridine synthesis.
Synthesis 8 (1990): 659-660.
Synthesis 8 (1990): 659-660.
Sato N and Takeuchi R.
Synthesis, 8, 659-660 (1990)
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