Perumal, P. Thirumalai, Synthetic Communications, 1990, vol. 20, # 9, p. 1353 - 1356
作者:Perumal, P. Thirumalai
DOI:——
日期:——
PERUMAL, THIRUMALAI P., SYNTH. COMMUN., 20,(1990) N, C. 1353-1356
作者:PERUMAL, THIRUMALAI P.
DOI:——
日期:——
Aluminum-Catalyzed Formation of Functional 1,3,2-Dioxathiolane 2-Oxides from Sulfur Dioxide: An Easy Entry towards<i>N</i>-Substituted Aziridines
作者:Victor Laserna、Eddy Martin、Eduardo C. Escudero-Adán、Arjan W. Kleij
DOI:10.1002/adsc.201600831
日期:2016.12.7
Aluminum(III) complexes derived from aminotriphenolate ligands are shown to be excellent catalysts for the formation of cyclic sulfites from a range of (functionalized) terminal and internal epoxides, and ex situ generated sulfur dioxide. The developed catalytic protocol is characterized by its operational simplicity, wide scope in epoxide reaction partners, good to excellent isolated yields and mild
Direct formation of cyclic sulfates utilising hypervalent iodine species and sulfur trioxide adducts
作者:Richard I. Robinson、Simon Woodward
DOI:10.1016/s0040-4039(03)00039-x
日期:2003.2
PhIO reacts with SO3·DMF at 0°C to form an active sulfating reagent; subsequent addition of alkenes results in the direct formation of cyclic sulfates in moderate to good yield (35–75%). Terminal, 1,1-disubstituted and cyclopentenes participate in the reaction which is technically very straightforward to carry out.