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| CAS号 : | 505-23-7 |
精确质量 : | 120.00700 |
| 分子式 : | C4H8S2 |
logP : | 1.81400 |
| 分子量 : | 120.23600 |
PSA : | 50.60000 |
1,3-二噻烷 | |
1,3-dithiane | |
505-23-7 | |
C4H8S2 | |
120.23600 | |
50.60000 | |
1.81400 | |
120.00700 |
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白色固体
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1.5981 (25ºC)
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Stable under normal temperatures and pressures.
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195 °F
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Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
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52-54 °C(lit.)
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1.14 g/cm3
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207-208°C
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III
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4.1
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29349990
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UN 1325 4.1/PG 2
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3
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R20/21/22
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S22-S24/25
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JO5070000
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29349990. Other nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds. General tariff:6.5% |
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1.将三氟化硼乙醚溶液、冰乙酸和氯仿的混合物,在剧烈搅拌下加热回流,滴加1,3-丙二硫醇和甲醛缩二甲醇-氯仿溶液。然后冷至室温。依次用水、10%氢氧化钾溶液、水洗涤。分出氯仿溶液进行干燥、浓缩,残余物溶于甲醇,加热至沸,趁热过滤,滤液冷至室温,置-20℃静置过夜,滤出结晶,真空干燥,得1,3-二噻烷。 | |
1、由于两个硫原子之间的亚甲基的反应活性而在有机合成方面有广泛应用。 |