D106208
3,4-二氢-2H-吡喃
97%
别名:
2,3,4-Trihydropyran, 2H-3,4-Dihydropyran, Dihydro-2H-pyran, Dihydropyran
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关于此项目
经验公式（希尔记法）:
C5H8O
化学文摘社编号:
分子量:
84.12
UNSPSC Code:
12352005
NACRES:
NA.22
PubChem Substance ID:
EC Number:
203-810-4
Beilstein/REAXYS Number:
103493
MDL number:
Assay:
97%
Form:
liquid
InChI key
BUDQDWGNQVEFAC-UHFFFAOYSA-N
InChI
1S/C5H8O/c1-2-4-6-5-3-1/h2,4H,1,3,5H2
SMILES string
C1COC=CC1
vapor density
2.9 (vs air)
assay
97%
form
liquid
Quality Level
refractive index
n20/D 1.440 (lit.)
bp
86 °C (lit.)
mp
−70 °C (lit.)
density
0.922 g/mL at 25 °C (lit.)
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Application
3,4-二氢-2h-吡喃可用作合成以下物质的反应物：
- 在羟基苯磺酸-甲醛树脂催化剂存在的情况下由醇生成的四氢吡喃化产物。.
- 在三氟乙酸存在的情况下与吡唑反应生成的四氢吡喃衍生物。.
- 在阳离子交换树脂催化下通过与芳香胺的多米诺反应生成的1,2,3,4-四氢喹啉衍生物。
- 在存在FeCl3-NaI的情况下由芳基叠氮化物生成的四氢喹啉。
signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 3 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1B
supp_hazards
存储类别
3 - Flammable liquids
wgk
WGK 1
flash_point_f
5.0 °F - closed cup
flash_point_c
-15 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
危险化学品
此项目有
Highly selective tetrahydropyranylation/dehydropyranylation of alcohols and phenols using porous phenolsulfonic acid-formaldehyde resin catalyst under solvent-free condition
Rajkumari K, et al.
Reactive and Functional Polymers, 149, 104519-104519 (2020)
Christiaan Jardínez et al.
Journal of molecular modeling, 22(12), 296-296 (2016-11-28)
The relationship between the chemical structure and biological activity (log IC50) of 40 derivatives of 1,4-dihydropyridines (DHPs) was studied using density functional theory (DFT) and multiple linear regression analysis methods. With the aim of improving the quantitative structure-activity relationship (QSAR)
Greene, T.W. Wuts, P.G.M.
Protective Groups in Organic Synthesis, 31-31 (1991)
Domino reaction of anilines with 3, 4-dihydro-2H-pyran catalyzed by cation-exchange resin in water: an efficient synthesis of 1, 2, 3, 4-tetrahydroquinoline derivatives
Chen L, et al.
Green Chemistry, 5, 627-629 (2003)
Yangbin Liu et al.
The Journal of organic chemistry, 77(8), 4136-4142 (2012-03-22)
A simple chiral diamine catalyst (1a) was successfully applied in the asymmetric Michael reaction between cyclic dimedone and α,β-unsaturated ketones. Both acyclic enones with aryl or alkyl β-substituents and cyclic enones were tolerated well in the reaction. The desired adducts
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