Ulrich H. Cumulenes in Click Reactions

John Wiley & Sons Ltd 2009, 552 p.

1-Carbon Cumulenes
Sul?nes, R2C=S=O
Sulfenes, R2C=S(O)=O
Other 1-Carbon Cumulenes
2-Carbon Cumulenes
Carbon Oxides, O=C=O, :C=O
Carbon Sul?des, S=C=S, S=C=O
Carbon Nitrides
Center Carbon Phosphorallenes, P=C=P
1,2-Dicarbon Cumulenes
Ketenes, R2C=C=O
Thioketenes, R2C=C=S
Ketenimines, R2C=C=NR
1-Silaallenes, R2C=C=Si
1-Phosphaallenes, R2C=C=P
Other Metal Allenes
1,3-Dicarbon Cumulenes
Thiocarbonyl S-ylides, R2C=S=CH2
2-Azaallenium Salts, R2C=N+=CR2
1-Oxa-3-azoniabutatriene Salts, R2C=N+=C=O
1-Thia-3-azabutatriene Salts, R2C=N+=C=S
Phosphorus Ylides
1,2,3-Tricarbon Cumulenes
Allenes, R2C=C=CR2
[3] Cumulenes, R2C=C=C=CR2
[4] Cumulenes, R2C=C=C=C=CR2
[5] Cumulenes, R2C=C=C=C=C=CR2
Noncarbon Cumulenes
Azides, RN=N=N
Triazaallenium Salts, RN=N+=NR
Sulfur Oxides
Sulfur Nitrides
Cationic Boron Cumulenes, R2N=B=NR