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871-84-1 - 1,7-Octadiyne, 98% - A15829 - Alfa Aesar

A15829 1,7-Octadiyne, 98%

CAS Number
871-84-1
Synonyms

Size Price ($) Quantity Availability
10g 72.31
50g 250.20
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1,7-Octadiyne, 98%

MDL
MFCD00008580
EINECS
212-815-0

Chemical Properties

Formula
HC≡C(CH2)4C≡CH
Formula Weight
106.17
Boiling Point
135-136°
Flash Point
23°(73°F)
Density
0.810 A
Refractive Index
1.4460
Solubility
Not miscible or difficult to mix.

Applications

1,7-Octadiyne is an useful bifunctional chain extension unit. It participates in the formation of uranium(IV) vinyl complexes. It reacts with frustrated Lewis pair P(o-tolyl)3/B(C6F5)3 by acetylene C-C coupling to yield the zwitterionic product. It undergoes the reductive cyclization during reaction with Re2Cl4(?-dppm)2 (dppm = Ph2PCH2PPh2) and affords quadruply bonded dirhenium(III) complex Re2Cl3(?,η2-C8H7)(?-dppm)2.

Notes

Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Recommended storage temperature is 2 - 8°C. Incompatible with strong oxidizing agents.

Literature References

Boris Kosog.; Christos E Kefalidis.; Frank W Heinemann.; Laurent Maron.; Karsten Meyer. Uranium(III)-mediated C-C-coupling of terminal alkynes: fo rmation of dinuclear uranium(IV) vinyl complexes. Journal of the American Chemical Society. 2012, 134 (30), 12792-12797.

Chao Chen.; Roland Fröhlich.; Gerald Kehr.; Gerhard Erker. Remarkably variable reaction modes of frustrated Lewis pairs with non-conjugated terminal diacetylenes. Chemical Communications. 2010, 46 (20), 3580-3582.

Useful bifunctional chain extension unit. For use in Co-mediated [2+2+2] cyclotrimerization reactions, see: Synthesis, 1374 (1994).

GHS Hazard and Precautionary Statements

Hazard Statements: H304-H226-H315-H319-H335

May be fatal if swallowed and enters airways. Flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P210-P261-P280-P301+P310-P303+P361+P353-P305+P351+P338-P304+P340-P362-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Beilstein
1697275
Hazard Class
3
Packing Group
III
Harmonized Tariff Code
2901.29
TSCA
Yes

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