3-Butyn-2-one

[ Density]:
0.87

[ Boiling Point ]:
85 ºC

[ Molecular Formula ]:
C₄H₄O

[ Molecular Weight ]:
68.074

[ Flash Point ]:
-1.1±0.0 °C

[ Exact Mass ]:
68.026215

[ PSA ]:
17.07000

[ LogP ]:
0.44

[ Vapour Pressure ]:
70.6±0.2 mmHg at 25°C

[ Index of Refraction ]:
1.4045-1.4095

[ Storage condition ]:
0-6°C

Click to get detail MSDS

[ Symbol ]:

GHS02, GHS06

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H225-H300-H315-H319-H335

[ Precautionary Statements ]:
P210-P261-P264-P301 + P310-P305 + P351 + P338

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
F:Flammable;T+:Verytoxic;

[ Risk Phrases ]:
R11;R28;R36/37/38

[ Safety Phrases ]:
S45-S36/37/39-S28A-S26-S16

[ RIDADR ]:
UN 1992 3/PG 2

[ WGK Germany ]:
3

[ RTECS ]:
ES0875000

[ Packaging Group ]:
II

[ Hazard Class ]:
3

[ HS Code ]:
2914190090

Click to get detail synthetic route

[ HS Code ]: 2914190090

[ Summary ]:
2914190090 other acyclic ketones without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Short total syntheses of both the putative and actual structures of the clerodane diterpenoid (+/-)-sacacarin by double annulation.

Org. Lett. 3(25) , 4027-30, (2001)

[reaction: see text] The putative structure of the naturally occurring clerodane diterpenoid (+/-)-sacacarin has been prepared in only 10 steps, six of which are C-C bond-forming steps, in a chemo-, r...

A heterocycle-forming double michael reaction. [5 + 1] annulation route to highly substituted and functionalized piperidines.

Org. Lett. 3(18) , 2911-4, (2001)

[reaction: see text]. Nitrogen-containing tethered diacids, easily prepared by reductive alkylation of diethyl aminomalonate or ethyl cyanoglycinate, undergo double Michael reactions with 3-butyn-2-on...

Chiral aminophosphines as catalysts for enantioselective double-Michael indoline syntheses.

Molecules 17(5) , 5626-50, (2012)

The bisphosphine-catalyzed double-Michael addition of dinucleophiles to electron-deficient acetylenes is an efficient process for the synthesis of many nitrogen-containing heterocycles. Because the re...

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