Highly Regio- and Stereoselective Iodohydroxylation of 1,2-Allenylic Sulfoxides in the Presence of Benzyl Thiol
作者:Minyan Wang、Chunling Fu、Shengming Ma
DOI:10.1002/adsc.201000973
日期:2011.7
The iodohydroxylation of 1,2‐allenyl sulfoxides with iodine in the presence of benzylthiol afforded 3‐hydroxy‐2‐iodo‐2(E)‐alkenyl sulfides in good yields and high regio‐ and stereoselectivities. In this reaction it was observed that the sulfoxide functionality was reduced to sulfide and the water in the reaction mixture plays an important role for the stereoselectivity observed. A mechanism involving
Unique Selectivity of Iodohydroxylation Reaction of Allenyl Phenyl Sulfoxides in Aqueous MeCN. A Stereodefined Synthesis of (<i>E</i>)-2-Iodo-3-hydroxy-1-alkenyl Sulfoxides
作者:Shengming Ma、Qi Wei、Haiming Wang
DOI:10.1021/ol006639p
日期:2000.11.1
Iodohydroxylation reaction of allenyl phenyl sulfoxides with I-2 can smoothly proceed to generate (E)-2-iodo-3-hydroxy-1-alkenyl sulfoxides with excellent regio- and stereoselectivity in high or excellent yields. The configuration of E-2a was determined by the X-ray diffraction study.