Acetylene derivatives communication 178. 2-Cyanoethyl ethers of acetylenic alcohols containing aromatic substituents

1956 ◽  
Vol 5 (11) ◽  
pp. 1410-1414
Author(s):  
N. D. Zelinky
Keyword(s):  
Acetylene Derivatives

Acetylene derivatives of titanocene

1985 ◽  
Vol 107 (12) ◽  
pp. 3717-3718 ◽  
Author(s):  
Helmut G. Alt ◽  
Heidi E. Engelhardt ◽  
Marvin D. Rausch ◽  
Lawrence B. Kool
Keyword(s):  
Derivatives Of ◽  
Acetylene Derivatives

Synthesis and Application of Tetrafluoroethylene (CF2CF2)-Containing Acetylene Derivatives

Synthesis ◽  
2020 ◽  
Vol 52 (13) ◽  
pp. 1947-1958
Author(s):  
Tsutomu Konno ◽  
Gen Egashira ◽  
Chihiro Kajimoto ◽  
Takuto Kataoka ◽  
Shigeyuki Yamada
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Alder Reaction ◽  
Diels Alder ◽  
Benzene Derivatives ◽  
Diels Alder Reaction ◽  
Cross Coupling Reaction ◽  
Oxidative Aromatization ◽  
High Yields ◽  
Acetylene Derivatives

On treating 1,3,4-tribromo-1,1,2,2-tetrafluorobutane, readily prepared from commercially available 4-bromo-3,3,4,4-tetrafluorobut-1-ene, with 3.3 equivalents of LHMDS at 0 °C in THF, the corresponding lithium acetylide could be prepared quantitatively. The acetylide reacted well with various aldehydes, ketones, or chlorosilanes to give the corresponding acetylene derivatives in high yields. It was also found that various iodoarenes could participate in the cross-coupling reaction with the zinc acetylide, readily prepared from the lithium acetylide and ZnCl2·TMEDA complex, in the presence of Pd(PPh3)4 to bring about the adducts in high yields. Thus-obtained acetylene derivatives underwent smooth Diels–Alder reaction with various 1,3-dienes to afford the corresponding 1,4- or 1,3-cyclohexadiene derivatives. In addition, it was revealed that the oxidative aromatization of the resulting cyclohexadiene derivatives with DDQ took place very smoothly, providing the multi-substituted benzene derivatives having a tetrafluoro­ethylene group.

scholarly journals Structural Studies of Some Acetylene Derivatives by the CNDO/2 Method.

1972 ◽  
Vol 26 ◽  
pp. 1278-1279 ◽  
Author(s):  
A. Bjørseth ◽  
Gustaf Nyman ◽  
Rune Liminga ◽  
Karin Nilsson ◽  
Wolfgang Nimmich
Keyword(s):  
Structural Studies ◽  
Acetylene Derivatives
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