anti -Selective Direct Asymmetric Mannich Reactions Catalyzed by Axially Chiral Amino Sulfonamide as an Organocatalyst

anti-Selective Direct Asymmetric Mannich

anti-Selective Direct Asymmetric Mannich Reactions Catalyzed by Axially Chiral Amino Sulfonamide as an Organocatalyst.

✍ Taichi Kano; Yukako Yamaguchi; Osamu Tokuda; Keiji Maruoka 📂 Article 📅 2006 🏛 John Wiley and Sons ⚖ 27 KB 👁 2 views

A Designer Axially Chiral Amino Sulfonam

A Designer Axially Chiral Amino Sulfonamide as an Efficient Organocatalyst for Direct Asymmetric anti-Selective Mannich Reactions and syn-Selective Cross-Aldol Reactions

✍ Taichi Kano; Yukako Yamaguchi; Keiji Maruoka 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 365 KB 👁 1 views

## Abstract **Amino sulfonamide catalyst**: A distal proton of the axially chiral amino sulfonamide (__S__)‐**1** realized the opposite diastereoselectivity in Mannich and cross‐aldol reactions compared with that observed in proline‐catalyzed reactions. The reactions catalyzed by (__S__)‐**1** proc

ChemInform Abstract: A Designer Axially

ChemInform Abstract: A Designer Axially Chiral Amino Sulfonamide as an Efficient Organocatalyst for Direct Asymmetric anti-Selective Mannich Reactions and syn-Selective Cross-Aldol Reactions.

✍ Taichi Kano; Yukako Yamaguchi; Keiji Maruoka 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 46 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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

A Designer Axially Chiral Amino Sulfonam

A Designer Axially Chiral Amino Sulfonamide as an Efficient Organocatalyst for Direct Asymmetric Mannich Reactions of N-Boc-Protected Imines

✍ Taichi Kano; Yukako Yamaguchi; Keiji Maruoka 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 266 KB 👁 2 views

A Designer Axially Chiral Amino Sulfonam

A Designer Axially Chiral Amino Sulfonamide as an Efficient Organocatalyst for Direct Asymmetric Mannich Reactions of N-Boc-Protected Imines

✍ Taichi Kano; Yukako Yamaguchi; Keiji Maruoka 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 266 KB 👁 2 views

## Abstract **The moderate nucleophilicity** of the axially chiral amino sulfonamide (__S__)‐**1** suppresses the problematic side reactions, including aldol reactions, in the asymmetric Mannich reaction of N‐Boc‐protected imines with aldehydes. The corresponding adducts are obtained in good yield

ChemInform Abstract: A Designer Axially

ChemInform Abstract: A Designer Axially Chiral Amino Sulfonamide as an Efficient Organocatalyst for Direct Asymmetric Mannich Reactions of N-Boc-Protected Imines.

✍ Taichi Kano; Yukako Yamaguchi; Keiji Maruoka 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 44 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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