Home Categories Chemical Reagents 1,9-Decadiyne
T8521630

1,9-Decadiyne , >98.0%(GC) , 1720-38-3

CAS NO.:1720-38-3

Empirical Formula: C10H14

Molecular Weight: 134.22

MDL number: MFCD00014926

EINECS: 217-012-9

Pack Size Price Stock Quantity
5mL RMB452.00 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: -6.35°C (estimate)
Boiling point: 80-81 °C (10 mmHg)
Density  0.822
refractive index  1.449-1.453
Flash point: 60°C
storage temp.  Flammables area
form  Liquid
color  Clear yellow
Specific Gravity 0.816
Water Solubility  Insoluble in water.
BRN  1734594
CAS DataBase Reference 1720-38-3(CAS DataBase Reference)
EPA Substance Registry System 1,9-Decadiyne (1720-38-3)

Description and Uses

One-step synthesis of carbametacyclophane 3 from 1,9-decadiyne and diethyl acetylenedicarboxylate is described. The use of 1,9-decadiyne as a nucleophile led only to the monoalkynylation product, a selectivity that would be difficult to achieve with a catalytic in situ metalation process. 1,9-decadiyne reacts with iodobenzene (excess) to afford the bis-Sonogashira coupling product in excellent yield. 1,9-Decadiyne was dihydrated and gave 2,9-decanedione in 92% yield.

Safety

Symbol(GHS) 
GHS08,GHS02
Signal word  Danger
Hazard statements  H226-H227-H304
Precautionary statements  P210-P280-P301+P310+P331-P370+P378-P403+P235-P405-P501-P240-P241-P280a-P303+P361+P353-P501a
Risk Statements  10
Safety Statements  16
RIDADR  1993
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29012900

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