Asymmetric Mannich-Type Addition of Ketene Silyl Acetals and Thioacetals to N,N-Dialkylhydrazones

ChemInform Abstract: Asymmetric Michael

ChemInform Abstract: Asymmetric Michael Addition of Formaldehyde N,N-Dialkylhydrazones to Alkylidene Malonates.

✍ Juan Vazquez; Auxiliadora Prieto; Rosario Fernandez; Dieter Enders; Jose M. Lass 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 29 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

Lewis Base Activation of Lewis Acids. Vi

Lewis Base Activation of Lewis Acids. Vinylogous Aldol Addition Reactions of Conjugated N,O-Silyl Ketene Acetals to Aldehydes.

✍ Scott E. Denmark; John R. Jr. Heemstra 📂 Article 📅 2006 🏛 John Wiley and Sons ⚖ 30 KB 👁 2 views

One-Pot Synthesis of β-Lactams from Aldi

One-Pot Synthesis of β-Lactams from Aldimines and Ketene Silyl Acetals by Tandem Lewis Base-Catalyzed Mannich-Type Addition and Cyclization.

✍ Eiki Takahashi; Hidehiko Fujisawa; Toshiharu Yanai; Teruaki Mukaiyama 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 21 KB 👁 1 views

## Abstract For Abstract see ChemInform Abstract in Full Text.

Application of selective 1 : 2 addition

Application of selective 1 : 2 addition of ketene N,N-acetal and isocyanates to novel polyamide syntheses

✍ Nobuhiro Kihara; Yoriatsu Sugimoto; Takeshi Endo 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 171 KB

1,1-Bis(dimethylamino)ethylene (ketene N,N-acetal) (1) reacted with isocyanates to give either 1 : 1 adduct 3,3-bis(dimethylamino)acrylamides (3) or 1 : 2 adduct bis(dimethylamino)methylenemalonamides ( 4), depending on the amount of the charged isocyanate. 3 was obtained selectively in the case of

ChemInform Abstract: Versatile, Diastere

ChemInform Abstract: Versatile, Diastereoselective Additions of Silyl Ketene Acetals, Allyl Tributylstannane, and Me3SiCN to N-Acyl Pyrazolines: Asymmetric Synthesis of Densely Functionalized Pyrazolidines.

✍ F. M. Guerra; M. R. Mish; E. M. Carreira 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 35 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

ChemInform Abstract: Practical Synthesis

ChemInform Abstract: Practical Synthesis of Natural Amino Acid Derivatives: Hf(OTf)4-Catalyzed Mannich-Type Reaction of Ketene Silyl Acetals or Enol Silyl Ethers with N,O-Acetals as a Glycine Cation Equivalent.

✍ Norio Sakai; Asuka Sato; Takeo Konakahara 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 41 KB 👁 2 views