✦ LIBER ✦

A stereoselective access to the basic skeleton of phyllocladane type diterpenes: [3+2], [2+2+2], and [4+2] cycloaddition

✍ Scribed by Jean-Pierre Gotteland; Max Malacria

Book ID: 104232888
Publisher: Elsevier Science
Year: 1989
Tongue: French
Weight: 289 KB
Volume: 30
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)80445-7

No coin nor oath required. For personal study only.

✦ Synopsis

A strategy based upon a "cascade" of three consecutive cycloaddition reactions [3+2], [2+2+2] and [4+2] allowed a stereoselective and straightforward access to the phyllocladane basic skeleton in eight high yield steps starting from 1,5-hexadiyne.

📜 SIMILAR VOLUMES

ChemInform Abstract: Reversal of the Dia

ChemInform Abstract: Reversal of the Diastereoselectivity in a Sequence of Cycloaddition Reactions: (2 + 2 + 2), Ene Type, (4 + 2). A Totally Stereoselective Access to the Basic Skeleton of the Kaurane Family.

✍ P. CRUCIANI; C. AUBERT; M. MALACRIA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 KB

Synthetic approach to aphidicolan and st

Synthetic approach to aphidicolan and stemodan basic skeletons using a “Tandem Principle” [2+2+2] and [4+2] cycloaddition reactions

✍ Robert Stammler; Karine Halvorsen; Jean-Pierre Gotteland; Max Malacria 📂 Article 📅 1994 🏛 Elsevier Science 🌐 French ⚖ 249 KB

Photocycloadditions of 2-(trimethylsilyl

Photocycloadditions of 2-(trimethylsilyloxy)-1,3-butadiene to 2-cycloalkenones. Access to the basic pentalenolactone skeleton

✍ Martin Demuth; Bipin Pandey; Bernhard Wietfeld; Hadi Said; José Viader 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 German ⚖ 472 KB

The (2 + 21 photocycloaddition of 2-(trimethylsilyloxy)-1,3-butadiene to a number of 2-cycloalkenones proved to be quite a general reaction leading to good yields of the cycloadducts (Table ). This finding is surprising since dienes, in general, are better known as quenchers of enone triplets rather

Stereoselective [4+2] cycloadditions of

Stereoselective [4+2] cycloadditions of tetrazines to 3-oxo- and 3-arylimino-4′-methylenedihydro-3′H-spiro[bicyclo[2.2.1]heptane-2,2′-furans]

✍ Uroš Grošelj; Anton Meden; Branko Stanovnik; Jurij Svete 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 412 KB

Formal [4 + 2] Cycloaddition of Donor−Ac

Formal [4 + 2] Cycloaddition of Donor−Acceptor Cyclobutanes and Aldehydes: Stereoselective Access to Substituted Tetrahydropyrans

✍ Parsons, Andrew T.; Johnson, Jeffrey S. 📂 Article 📅 2009 🏛 American Chemical Society 🌐 English ⚖ 892 KB

ChemInform Abstract: Allylic Substitutio

ChemInform Abstract: Allylic Substitution of 3′,4′-Unsaturated Nucleosides: Organosilicon- Based Stereoselective Access to 4′-C-Branched 2′,3′-Didehydro-2′,3′- dideoxyribonucleosides.

✍ K. HARAGUCHI; H. TANAKA; Y. ITOH; K. YAMAGUCHI; T. MIYASAKA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB