Journal
MENDELEEV COMMUNICATIONS
Volume 32, Issue 2, Pages 170-172Publisher
ELSEVIER
DOI: 10.1016/j.mencom.2022.03.005
Keywords
Keywords; donor-acceptor cyclopropanes; gallium salts; (thiophen-2-yl)cyclopropane dicarboxylate; ipso -dimerization; pentaleno[6a; b ]
Categories
Ask authors/readers for more resources
A selectivity-switched dimerization process was developed using anhydrous Gaiii salts as catalysts, resulting in selective formation of two different derivatives. The crucial role of a phenyl substituent at position 5 of the thiophene ring and some regularities were investigated.
A selectivity-switched dimerization process for (5-phenyl-2thienyl)cyclopropane-1,1-dicarboxylate under activation conditions with anhydrous Gaiii salts was developed. Using GaCl3 or Ga(NTf2)3 as catalysts, 3a,4,5a,6,7,8-hexahydro5H-pentaleno[6a,1-b]thiophene and 5,6-dihydro-4H-cyclopenta[b]thiophene derivatives can be selectively obtained as a result of ipso-type and [3+2]-annulation type dimerization. The crucial role of a phenyl substituent at position 5 of the thiophene ring and some regularities are discussed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available