C2H2
CAS Registry Number: 74-86-2
ACX Registry Number: X1002751-1
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Synonyms for acetylene :
acetylene

WARNINGS which mention acetylene:

From α-ACETYLENIC ESTERS FROM α-ACYLMETHYLENEPHOSPHORANES: ETHYL 4,4,4-TRIFLUOROTETROLATE, Collective Volume 9 p. 436, Annual Volume 70 p. 246

CAUTION! Care must be taken not to heat the phosphorane too rapidly, particularly before the solid has melted. The temperature of the molten material is not at equilibrium until the mixture has completely melted. If it is heated too rapidly, it is difficult to control the rate of acetylene production. It is best to heat slowly until a stirred, molten material is obtained and to continue heating at such a rate as to control acetylene formation.From PREPARATION AND USE OF LITHIUM ACETYLIDE: 1-METHYL-2-ETHYNYL-endo-3,3-DIMETHYL-2-NORBORNANOL, Collective Volume 8 p. 391, Annual Volume 68 p. 14

Caution: Reactions with acetylene should be carried out in the hood and all lines carrying exhaust from the bubblers must be vented to a fume hood!


Preps in which acetylene appears:

ALKYNE via SOLID-LIQUID PHASE-TRANSFER CATALYZED DEHYDROHALOGENATION: ACETYLENE DICARBOXALDEHYDE TETRAMETHYL ACETAL AND ACETYLENE DICARBOXALDEHYDE DIMETHYL ACETAL
Submitted by: Rufine Akué-Gédu and Benoît Rigo
Published in Collective Volume 11 p. 607, Annual Volume 82 p. 179

1,2,3-TRIPHENYLCYCLOPROPENIUM BROMIDE
Submitted by: Ruo Xu and Ronald Breslow
Published in Collective Volume 9 p. 730, Annual Volume 74 p. 72

α-ACETYLENIC ESTERS FROM α-ACYLMETHYLENEPHOSPHORANES: ETHYL 4,4,4-TRIFLUOROTETROLATE
Submitted by: B. C. Hamper
Published in Collective Volume 9 p. 436, Annual Volume 70 p. 246

TRIMETHYLSILYLACETYLENE
Submitted by: Andrew B. Holmes and Chris N. Sporikou
Published in Collective Volume 8 p. 606, Annual Volume 65 p. 61

ENOL ETHERS BY METHYLENATION OF ESTERS: 1-PHENOXY-1-PHENYLETHENE AND 3,4-DIHYDRO-2-METHYLENE-2H-1-BENZOPYRAN
Submitted by: Stanley H. Pine, Gia Kim, and Virgil Lee
Published in Collective Volume 8 p. 512, Annual Volume 69 p. 72

METHYL (Z)-3-(PHENYLSULFONYL)PROP-2-ENOATE
Submitted by: G. C. Hirst and P. J. Parsons
Published in Collective Volume 8 p. 458, Annual Volume 69 p. 169

PREPARATION AND USE OF LITHIUM ACETYLIDE: 1-METHYL-2-ETHYNYL-endo-3,3-DIMETHYL-2-NORBORNANOL
Submitted by: M. Mark Midland, Jim I. McLoughlin, and Ralph T. Werley, Jr
Published in Collective Volume 8 p. 391, Annual Volume 68 p. 14

PALLADIUM-CATALYZED SYNTHESIS OF CONJUGATED DIENES: (5Z,7E)-5,7-HEXADECADIENE
Submitted by: Ei-ichi Negishi, Tamotsu Takahashi, and Shigeru Baba
Published in Collective Volume 8 p. 295, Annual Volume 66 p. 60

ETHYNYL p-TOLYL SULFONE
Submitted by: Liladhar Waykole and Leo A. Paquette
Published in Collective Volume 8 p. 281, Annual Volume 67 p. 149

PROPARGYLATION OF ALKYL HALIDES: (E)-6,10-DIMETHYL-5,9-UNDECADIEN-1-YNE AND (E)-7,11-DIMETHYL-6,10-DODECADIEN-2-YN-1-OL
Submitted by: John Hooz, Jorge Cabezas, Sergio Musmanni, and Jose Calzada
Published in Collective Volume 8 p. 226, Annual Volume 69 p. 120

DIALKOXYACETYLENES: DI-tert-BUTOXYETHYNE, A VALUABLE SYNTHETIC INTERMEDIATE
Submitted by: Anna Bou, Miquel A. Pericàs, Antoni Riera, and Fèlix Serratosa
Published in Collective Volume 8 p. 161, Annual Volume 65 p. 68

2-ALKENYL CARBINOLS FROM 2-HALO KETONES: 2-E-PROPENYLCYCLOHEXANOL
Submitted by: P. A. Wender, D. A. Holt, and S. Mc N. Sieburth
Published in Collective Volume 7 p. 456, Annual Volume 64 p. 10

PHENYL VINYL SULFONE AND SULFOXIDE
Submitted by: Leo A. Paquette and Richard V. C. Carr
Published in Collective Volume 7 p. 453, Annual Volume 64 p. 157

α-tert-ALKYLATION OF KETONES: 2-tert-PENTYLCYCLOPENTANONE
Submitted by: M. T. Reetz, I. Chatziiosifidis, F. Hübner, and H. Heimbach
Published in Collective Volume 7 p. 424, Annual Volume 62 p. 95

Z-1-IODOHEXENE
Submitted by: A. Alexakis, G. Cahiez, and J. F. Normant
Published in Collective Volume 7 p. 290, Annual Volume 62 p. 1

SELECTIVE HYDROBORATION OF A 1,3,7-TRIENE: HOMOGERANIOL
Submitted by: Eric J. Leopold
Published in Collective Volume 7 p. 258, Annual Volume 64 p. 164

ADDITION OF AN ETHYLCOPPER COMPLEX TO 1-OCTYNE: (E)-5-ETHYL-1,4-UNDECADIENE
Submitted by: Ramnath S. Iyer and Paul Helquist
Published in Collective Volume 7 p. 236, Annual Volume 64 p. 1

CONVERSION OF METHYL KETONES INTO TERMINAL ALKYNES: (E)-BUTEN-3-YNYL-2,6,6-TRIMETHYL-1-CYCLOHEXENE
Submitted by: Ei-ichi Negishi, Anthony O. King, and James M. Tour
Published in Collective Volume 7 p. 63, Annual Volume 64 p. 44

PEPTIDE SYNTHESIS USING 1-(4-CHLOROPHENYL)-3-(4'-METHYL-1'-PIPERAZINYL)-2-PROPYN-1-ONE AS REAGENT: BENZYLOXYCARBONYL-L-ALANYL-L-CYSTEINE METHYL ESTER AND BENZYLOXYCARBONYL-L-ASPARTYL-(tert-BUTYL ESTER)-L-PHENYLALANYL-L-VALINE METHYL ESTER
Submitted by: H. P. Fahrni, U. Lienhard, and M. Neuenschwander
Published in Collective Volume 7 p. 30, Annual Volume 63 p. 175

2-PHENYL-2-VINYLBUTYRONITRILE
Submitted by: M. Makosza, J. Czyzewski, and M. Jawdosiuk
Published in Collective Volume 6 p. 940, Annual Volume 55 p. 99

ALKENES via HOFMANN ELIMINATION: USE OF ION-EXCHANGE RESIN FOR PREPARATION OF QUATERNARY AMMONIUM HYDROXIDES: DIPHENYLMETHYL VINYL ETHER
Submitted by: Carl Kaiser and Joseph Weinstock
Published in Collective Volume 6 p. 552, Annual Volume 55 p. 3

5,6-DIHYDRO-2H-PYRAN-2-ONE AND 2H-PYRAN-2-ONE
Submitted by: M. Nakagawa, J. Saegusa, M. Tonozuka, M. Obi, M. Kiuchi, T. Hino, and Y. Ban
Published in Collective Volume 6 p. 462, Annual Volume 56 p. 49

N-BENZYLACRYLAMIDE
Submitted by: Chester L. Parris
Published in Collective Volume 5 p. 73, Annual Volume 42 p. 16

VINYL LAURATE AND OTHER VINYL ESTERS
Submitted by: Daniel Swern and E. F. Jordan, Jr
Published in Collective Volume 4 p. 977, Annual Volume 30 p. 106

1-PHENYL-1-PENTEN-4-YN-3-OL
Submitted by: Lars Skattebøl, E. R. H. Jones, and Mark C. Whiting
Published in Collective Volume 4 p. 792, Annual Volume 39 p. 56

MONOVINYLACETYLENE
Submitted by: G. F. Hennion, Charles C. Price, and Thomas F. McKeon, Jr
Published in Collective Volume 4 p. 683, Annual Volume 38 p. 70

METHYLISOUREA HYDROCHLORIDE
Submitted by: Frederick Kurzer and Alexander Lawson
Published in Collective Volume 4 p. 645, Annual Volume 34 p. 67

1,1'-ETHYNYLENE-bis-CYCLOHEXANOL
Submitted by: G. Forrest Woods and Louis H. Schwartzman
Published in Collective Volume 4 p. 471, Annual Volume 32 p. 70

5-ETHYL-2-METHYLPYRIDINE
Submitted by: Robert L. Frank, Frederick J. Pilgrim, and Edward F. Riener
Published in Collective Volume 4 p. 451, Annual Volume 30 p. 41

β-CHLOROVINYL ISOAMYL KETONE
Submitted by: Charles C. Price and Joseph A. Pappalardo
Published in Collective Volume 4 p. 186, Annual Volume 32 p. 27

n-BUTYLACETYLENE
Submitted by: Kenneth N. Campbell and Barbara K. Campbell
Published in Collective Volume 4 p. 117, Annual Volume 30 p. 15

VINYL CHLOROACETATE
Submitted by: Richard H. Wiley
Published in Collective Volume 3 p. 853, Annual Volume 28 p. 94

TETRANITROMETHANE
Submitted by: Poe Liang
Published in Collective Volume 3 p. 803, Annual Volume 21 p. 105

LEPIDINE
Submitted by: Fred W. Neumann, Nolan B. Sommer, C. E. Kaslow, and R. L. Shriner
Published in Collective Volume 3 p. 519, Annual Volume 26 p. 45

INDOLE
Submitted by: F. T. Tyson
Published in Collective Volume 3 p. 479, Annual Volume 23 p. 42

1-ETHYNYLCYCLOHEXANOL
Submitted by: J. H. Saunders
Published in Collective Volume 3 p. 416, Annual Volume 29 p. 47

DIMETHYLETHYNYLCARBINOL
Submitted by: Donald D. Coffman
Published in Collective Volume 3 p. 320, Annual Volume 20 p. 40

THIOPHENE
Submitted by: Ross Phillips
Published in Collective Volume 2 p. 578, Annual Volume 12 p. 72

1,1-DI-p-TOLYLETHANE
Submitted by: J. S. Reichert and J. A. Nieuwland
Published in Collective Volume 1 p. 229, Annual Volume 4 p. 23

ACETAL
Submitted by: Homer Adkins and B. H. Nissen
Published in Collective Volume 1 p. 1, Annual Volume 3 p. 1