✦ LIBER ✦

ChemInform Abstract: Stereoselective Synthesis of New β-Lactams by Cyclocondensation of 1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene with 4-Formyl Substituted Azetidinones.

✍ Scribed by Rita Annunziata; Maurizio Benaglia; Mauro Cinquini; Franco Cozzi; Fernando Montanari; Laura Raimondi

Publisher: John Wiley and Sons
Year: 2010
Weight: 32 KB
Volume: 30
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199927251

No coin nor oath required. For personal study only.

✦ Synopsis

Stereoselective Synthesis of New β-Lactams by Cyclocondensation of 1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene with 4-Formyl Substituted Azetidinones.

-Lewis acid promoted hetero Diels-Alder reaction of Danishefsky's diene (II) with enantiomerically pure azetidin-2-one derivatives (I) affords previously unreported substituted β-lactams in fair to good yields and in diastereoisomeric ratios of up to 98:2. -(ANNUNZIATA,

📜 SIMILAR VOLUMES

Stereoselective Synthesis of β-Carboetho

Stereoselective Synthesis of β-Carboethoxy-γ-lactams via Imino Mukaiyama Aldol-Type Reaction of 1,4-Bis(trimethylsilyloxy)-1,4-diethoxy-1,3-butadiene.

✍ Manat Pohmakotr; Nattawut Yotapan; Patoomratana Tuchinda; Chutima Kuhakarn; Vich 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 42 KB

ChemInform Abstract: Reaction of 1-Oxa-4

ChemInform Abstract: Reaction of 1-Oxa-4-aza-1,3-butadienes with Ketenes: Synthesis of Functionalized β-Lactams.

✍ K. BOGDANOWICZ-SZWED; M. KRASODOMSKA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 33 KB 👁 1 views

ChemInform Abstract: Simple Stereoselect

ChemInform Abstract: Simple Stereoselective Synthesis of (1E,3Z)-4-(Substituted)amino 1,3-Diethoxycarbonyl-1,3-butadienes.

✍ M. Akram Khan; Harry Adams 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 KB

ChemInform Abstract: Synthesis of Functi

ChemInform Abstract: Synthesis of Functionalized 2-Alkylidenetetrahydrofurans by Cyclization of 1,3-Bis(trimethylsilyloxy)-1,3-butadienes with Epoxides.

✍ Peter Langer; Holger Armbrust; Tobias Eckardt; Joerg Magull 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 40 KB

ChemInform Abstract: A Chemical Evidence

ChemInform Abstract: A Chemical Evidence of Regiochemistry in the Diels—Alder Reaction of 4-Oxygenated Quinolinequinones with 1-Methoxy-3-trimethylsilyloxy-1,3-butadienes.

✍ Yoshie Horiguchi; Katsuhiro Tomoda; Takehiro Sano 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 KB 👁 2 views

ChemInform Abstract: A Synthesis of 1-Az

ChemInform Abstract: A Synthesis of 1-Azaanthraquinones via Diels—Alder Reaction of 4-Hydroxy- and 4-Methoxy-2-phenylquinolinequinones with 3-Trimethylsilyloxy-1,3-butadienes: Observation of Inverse Regioselectivity.

✍ Yoshie Horiguchi; Akio Toeda; Katuhiro Tomoda; Hideki Suzuki; Takehiro Sano 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 33 KB 👁 2 views