150619-45-7Relevant academic research and scientific papers
One-pot synthesis of chiral β-hydroxysulfones from alkynes: Via aerobic oxysulfonylation and asymmetric reduction in MeOH/H2O
Cui, Peng,Liu, Qixing,Wang, Juan,Liu, Huan,Zhou, Haifeng
supporting information, p. 634 - 639 (2019/02/14)
A highly enantioselective synthesis of β-hydroxysulfones from inexpensive and readily available terminal alkynes and sodium sulfinates via a consecutive one-pot reaction in an aqueous medium under mild conditions is described. The intermediates, β-keto sulfones, generated from an aerobic oxysulfonylation of terminal alkynes and sodium sulfinates catalyzed by an iron salt in MeOH/H2O (v : v = 3 : 1) at 50 °C, were subsequently reduced by a Ru-catalyzed asymmetric transfer hydrogenation with HCOONa as a hydrogen source. A variety of chiral β-hydroxysulfones were obtained in good yields and up to 99.9% ee values. This one-pot process could be easily scaled up for gram-scale synthesis.
Synthesis of 2-Aryl-3-trifluoromethylsulfonylpyrroles
Barnes, Keith D.,Ward, Randall
, p. 871 - 874 (2007/10/02)
A general method for the preparation of 2-aryl-3-trifluoromethylsulfonylpyrroles 2 has been developed.Procedures for the construction of the key enamine intermediates 9 and their cyclizations to pyrroles are reported.
