251356
Methylenecyclopentane
97%
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About This Item
Linear Formula:
C5H8(=CH2)
CAS Number:
Molecular Weight:
82.14
EC Number:
216-203-4
UNSPSC Code:
12352100
PubChem Substance ID:
Beilstein/REAXYS Number:
1847501
MDL number:
assay
97%
refractive index
n20/D 1.435 (lit.)
bp
75-76 °C (lit.)
density
0.781 g/mL at 25 °C (lit.)
storage temp.
2-8°C
SMILES string
C=C1CCCC1
InChI
1S/C6H10/c1-6-4-2-3-5-6/h1-5H2
InChI key
NFJPEKRRHIYYES-UHFFFAOYSA-N
General description
Hydration rate of methylenecyclopentane has been measured spectrophotometrically in aqueous perchloric acid. Trost′s palladium-mediated methylenecyclopentane annelation to the nitroalkene yields methylenecyclopentane derivative.
Application
Methylenecyclopentane has been used in total synthesis of (±)-cephalotaxin.
signalword
Danger
hcodes
Hazard Classifications
Asp. Tox. 1 - Flam. Liq. 2
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
-0.4 °F - closed cup
flash_point_c
-18 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Regulatory Information
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The total synthesis of cephalotaxine.
J Auerbach et al.
Journal of the American Chemical Society, 94(20), 7172-7173 (1972-10-04)
COMPARISON OF THE TRANSITION-STATE ENERGIES OF ACID-CATALYZED HYDRATIONS OF SOME 1-METHYLCYCLOALKENES AND METHYLENECYCLOALKANES.
Lajunen M and Himottu M.
Acta Chemica Scandinavica, 41(5), 252-258 (1987)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 521237-5MG | 04055977271416 |