Reaction of dialkyl-substituted alkynes with carbon dioxide catalyzed by nickel (0) complexes. Incorporation of carbon dioxide in alkyne dimers and novel …
Y Inoue, Y Itoh, H Kazama, H Hashimoto
文献索引：Inoue, Yoshio; Itoh, Yoshio; Kazama, Haruo; Hashimoto, Harukichi Bulletin of the Chemical Society of Japan, 1980 , vol. 53, # 11 p. 3329 - 3333
Ni (cod) 2–Ph 2 P (CH 2) 4 PPh 2 system (cod= 1, 5-cyclooctadiene) catalyzed the reaction of 3-hexyne, for example, with CO 2 to give a CO 2 incorporated product, ie, tetraethyl-2- pyrone, in a fairly good yield together with novel two cyclotrimers of the alkyne having cyclopentadiene structures, ie, pentaethyl-5-(1-propenyl)-1, 3-cyclopentadiene and pentaethyl-5-allyl-1, 3-cyclopentadiene. The novel two cyclotrimers were formed ...
