PROPARGYLALDEHYDE DIETHYL ACETAL
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PROPARGYLALDEHYDE DIETHYL ACETAL
structure -
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CAS No:
10160-87-9
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Formula:
C7H12O2
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Chemical Name:
PROPARGYLALDEHYDE DIETHYL ACETAL
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Synonyms:
1-Propyne, 3,3-diethoxy-;3,3-Diethoxyprop-1-yne 98%;PROPARGYLALDEHYDE DIETHYL ACETAL, 98%PROPARGYLALDEHYDE DIETHYL ACETAL, 98%PROPARGYLALDEHYDE DIETHYL ACETAL, 98%PROPARGYLALDEHYDE DIETHYL ACETAL, 98%;PROPARGYLALDEHYDE DIETHYL ACETAL;TIMTEC-BB SBB008980;3,3-Diethoxy-1-propyne~Propargylaldehyde diethyl acetal;Propargylaldehyde diethyl acetal, Propiolaldehyde diethyl acetal;Propargylaldehyde diethyl acetal,98%
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CAS No:
PROPARGYLALDEHYDE DIETHYL ACETAL Basic Attributes
128.17
128.17
1701566
233-430-4
45019
DTXSID60144050
Clear light yellow
29110000
Characteristics
18.46000
0.9
Clear light yellow liquid
0.894 g/mL at 25 °C(lit.)
138-139.5 °C(lit.)
90 °F
n20/D1.412(lit.)
Slightly soluble in water.
2-8ºC
8.16mmHg at 25°C
2-8°C
Safety Information
III
3
UN 1993 3/PG 3
3
Xi
16-26-36
Xi
P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501
10-36/37/38
UN 1993 3/PG 3
|Warning|H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]|P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, and P501|Aggregated GHS information provided by 49 companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
PROPARGYLALDEHYDE DIETHYL ACETAL Use and Manufacturing
(2) adding sodium hydroxide in absolute ethanol solution obtained in step (1) of the product 1, Anhydrous ethanol solution was prepared from 155 kg of sodium hydroxide dissolved in 470 kg of absolute ethanol, The reaction was refluxed at 82 ° C for 10 hours, isolated and purified to obtain propyne acetal diethyl acetal;The separation and purification first using 20 ° C, centrifuge rejection filter, dried with a filter soaked in 80 kg of ethanol for 10 minutes, Then dried, and then the filtrate was added to the distillation flask, the first atmospheric distillation, steaming to the end of the temperature 100 for receiving bottles, Start decompression, slowly open big vacuum, steamed to vacuum -0.09Mpa bottom temperature 100 stop heating. Then the distillation, pressure at atmospheric pressure, reflux ratio 4: 1, packed column 600mm, the bottom temperature of 120 , after distillation, stratification, The organic phase was mixed and stirred with 10 kg of sodium hydroxide for 1 hour, then filtered with suction, The filtrate was added to the distillation unit, with -0.097Mpa vacuum, 600mm distillation column, Distillation at a reflux ratio of 4: 1. Bottom temperature 50 , temperature 42 out of qualified products, qualified products 60 kg content> 98percent moisture <0.1percent.
Propargylaldehyde diethyl acetal is a useful reactant for the synthesis of alkenylsilanes via radical stereoselective hydrosilylation of alkynes with the help of Eosin Y and thiols as catalysts.
Propargylaldehyde diethyl acetal is a useful reactant for the synthesis of alkenylsilanes via radical stereoselective hydrosilylation of alkynes with the help of Eosin Y and thiols as catalysts.
Computed Properties
Molecular Weight:128.17
XLogP3:0.9
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:4
Exact Mass:128.083729621
Monoisotopic Mass:128.083729621
Topological Polar Surface Area:18.5
Heavy Atom Count:9
Complexity:94.7
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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PROPARGYLALDEHYDE DIETHYL ACETAL
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