Thiocarbonyl Surrogate via Combination of Sulfur and Chloroform for Thiocarbamide and Oxazolidinethione Construction
作者:Wei Tan、Jianpeng Wei、Xuefeng Jiang
DOI:10.1021/acs.orglett.7b00819
日期:2017.4.21
An efficient and practical thiocarbonyl surrogate via combination of sulfur and chloroform has been developed. A variety of thiocarbamides and oxazolidinethiones have been established, including chiral thiourea catalysts and chiral oxazolidinethione auxiliaries with high selectivity. Meanwhile, pesticides Diafenthiuron (an acaricide), ANTU (a rodenticide), and Chloromethiuron (an insecticide) were
The present application discloses thiourea compounds for use in the treatment of infections. The thiourea compounds have formula (I) wherein X
1
and X
2
each designate one or more substituents; and Z is —(CHR)—, —(CHR)
2
—, —O—(CHR)
2
—, —NH—(CHR)
2
—, or —S—(CHR)
2
—; including salts thereof.
A New Organocatalytic Concept for Asymmetric α-Alkylation of Aldehydes
作者:Lorenzo Caruana、Florian Kniep、Tore Kiilerich Johansen、Pernille H. Poulsen、Karl Anker Jørgensen
DOI:10.1021/ja510475n
日期:2014.11.12
The organocatalyticasymmetric α-alkylation of aldehydes by 1,6-conjugated addition of enamines to p-quinone methides is described. Employing a newly developed class of chiral secondary amine catalysts, α-diarylmethine-substituted aldehydes with two contiguous stereocenters have been synthesized in a simple manner with good diastereocontrol and excellent enantioselectivity.