thiourea and ketene

thiourea has been researched along with ketene* in 2 studies

Other Studies

2 other study(ies) available for thiourea and ketene

Article	Year
Isothiourea-catalysed asymmetric C-acylation of silyl ketene acetals. Chemistry (Weinheim an der Bergstrasse, Germany), 2011, Sep-19, Volume: 17, Issue:39 Screening of a range of chiral isothioureas and acyl donors to promote the asymmetric C-acylation of silyl ketene acetals indicates that C(2)-aryl-dihydropyrimidobenzothiazole-derived isothioureas and propionic anhydride give optimal reactivity and enantioselectivity in this process. Under optimised conditions 3-acyl-3-aryl or 3-acyl-3-alkylfuranones are prepared in good yields and moderate to excellent enantioselectivities (up to 98% ee; ee=enantiomeric excess). Topics: Acetals; Acylation; Catalysis; Ethylenes; Furans; Ketones; Silanes; Stereoisomerism; Thiourea	2011
Isothiourea-mediated stereoselective C-acylation of silyl ketene acetals. Organic letters, 2010, Jun-04, Volume: 12, Issue:11 Isothiourea DHPB promotes the diastereoselective C-acylation of silyl ketene acetals with anhydrides or benzoyl fluoride, giving 3-acyl-3-aryl or 3-acyl-3-alkylfuranones in excellent yields and stereoselectivities (up to 99:1 dr). Topics: Acetals; Acylation; Anhydrides; Catalysis; Ethylenes; Furans; Ketones; Molecular Structure; Silanes; Stereoisomerism; Thiourea	2010

Article

Year

Isothiourea-catalysed asymmetric C-acylation of silyl ketene acetals.

Chemistry (Weinheim an der Bergstrasse, Germany), 2011, Sep-19, Volume: 17, Issue:39

Screening of a range of chiral isothioureas and acyl donors to promote the asymmetric C-acylation of silyl ketene acetals indicates that C(2)-aryl-dihydropyrimidobenzothiazole-derived isothioureas and propionic anhydride give optimal reactivity and enantioselectivity in this process. Under optimised conditions 3-acyl-3-aryl or 3-acyl-3-alkylfuranones are prepared in good yields and moderate to excellent enantioselectivities (up to 98% ee; ee=enantiomeric excess).

Topics: Acetals; Acylation; Catalysis; Ethylenes; Furans; Ketones; Silanes; Stereoisomerism; Thiourea

2011

Isothiourea-mediated stereoselective C-acylation of silyl ketene acetals.

Organic letters, 2010, Jun-04, Volume: 12, Issue:11

Isothiourea DHPB promotes the diastereoselective C-acylation of silyl ketene acetals with anhydrides or benzoyl fluoride, giving 3-acyl-3-aryl or 3-acyl-3-alkylfuranones in excellent yields and stereoselectivities (up to 99:1 dr).

Topics: Acetals; Acylation; Anhydrides; Catalysis; Ethylenes; Furans; Ketones; Molecular Structure; Silanes; Stereoisomerism; Thiourea

2010