53336-42-8Relevant articles and documents
Regioselective substitution reactions of zinc sulfolenylates
Chou, Ta-Shue,Tseng, Hsien-Jung
, p. 7105 - 7108 (1995)
Zinc sulfolenylates 2a-c have been generated by metal exchange processes from lithium sulfolenylate. These organozinc compounds show very interesting regioselectivity in the reactions with electrophiles.
CHEMOSELECTIVE REACTIONS OF ULTRASONICALLY DISPERSED POTASSIUM WITH SOME BROMINATED HYDROTHIOPHENE S,S-DIOXIDES
Chou, Ta-shue,Chen, Mei-Man
, p. 2829 - 2834 (2007/10/02)
The reactions of ultrasonically dispersed potassium (UDP) with 4-bromo-2-sulfolenes resulted in chemoselective deprotonation at the C-5 position leading to the elimination-dimerization products.The possible C-S bond and C-Br cleavage reactions were not detected.The reaction of UDP with 3,4-dibromosulfolane resulted in dehydrobromination and double dehydrobromination.
SELECTIVITY IN CYCLOADDITIONS-X. REGIOCHEMISTRY OF CYCLOADDITIONS OF NITRILE OXIDES TO THIOPHENE AND BENZOTHIOPHENE 1,1-DIOXIDES
Albini, F. Marinone,Ceva, P.,Mascherpa, A.,Albini, E.,Caramella, P.
, p. 3629 - 3639 (2007/10/02)
Thiophene-1,1-dioxide undergoes regioselective cycloaddition to benzonitrile oxide.In the reaction with the less reactive mesitonitrile oxide the sulfur dioxide deriving from the dimerization of the dipolarophile causes a catalytic decomposition of the ni