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256560 Sigma-Aldrich

1-Pentyne

99%

  • CAS Number 627-19-0

  • Linear Formula CH3CH2CH2C≡CH

  • Molecular Weight 68.12

  •  Beilstein/REAXYS Number 1697133

  •  EC Number 210-987-1

  •  MDL number MFCD00009469

  •  PubChem Substance ID 24855537

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Properties

Related Categories Alkynes, Building Blocks, Chemical Synthesis, Organic Building Blocks, Terminal More...
vapor pressure   6.8 psi ( 20 °C)
InChI Key   IBXNCJKFFQIKKY-UHFFFAOYSA-N
assay   99%
refractive index   n20/D 1.385 (lit.)
bp   40 °C(lit.)
mp   −106-−105 °C (lit.)
density   0.691 g/mL at 25 °C (lit.)

Description

General description

Selective and non-selective hydrogenation of 1-pentyne catalyzed by silica-supported palladium has been studied by in situ X-ray absorption spectroscopy.

Application

1-Pentyne has been used in preparation of:
• lithium acetylides, required for asymmetric synthesis of α,α-dibranched propargyl sulfinamides
• 7-hydroxy-10-methoxy-3H-naphtho[2.1-b]pyrans

Packaging

5, 25 g in ampule

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 3295BE 3 / PGII
WGK Germany 
3
Flash Point(F) 
-4 °F
Flash Point(C) 
-20 °C

Documents

Certificate of Analysis

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Certificate of Origin

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Protocols & Articles

Related Content

Alkynes and Acetylenic Building Blocks

We list over 600 alkyne building blocks, including a wide array of propargyl alcohols, acetylenic boron reagents, and halogenated substrates for cross-coupling. Additionally, many of these are termin...
Keywords: Building blocks, Coupling reactions, Cross couplings

Peer-Reviewed Papers
15

References

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