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Propellanes. Part LXXI. Confirmation of predicted regiospecificity in Diels-Alder reactions of certain propellanes with 4-phenyl-1,2,4-triazoline-3,5-dione

✍ Scribed by Pnina Ashkenazi; Menachem Kaftory; Tuǧmaç Sayraç; Günther Maier; David Ginsburg

Publisher
John Wiley and Sons
Year
1983
Tongue
German
Weight
156 KB
Volume
66
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Two isomeric propellane epoxides 1a and 1b containing a cyclohexadiene ring are attacked by the title dienophile as predicted, syn to the five‐membered ether ring whose α‐hydrogens exert less repulsion than the α‐epoxy hydrogens or the epoxide oxygen, respectively, of the cyclobutane ring.

📜 SIMILAR VOLUMES

Propellanes. LXVI. Exo- and Endo-Diels-A
Propellanes. LXVI. Exo- and Endo-Diels-Alder adducts of 4-substituted 1,2,4-triazoline-3, 5-diones with various 1, 6-methano [10]annulenes
✍ Pnina Ashkenazi; Menachem Kaftory; David Ginsburg 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 German ⚖ 177 KB

## Abstract Relatively few __exo__‐adducts have been obtained from the title compounds. Only one such mono‐adduct, **3**, is known. Several __exo‐endo__‐bis‐adducts have been obtained but the structure of one of these, **5**, has been proved unequivocally by X‐ray structural determination.

X-Ray Diffraction Study of the Diels-Ald
X-Ray Diffraction Study of the Diels-Alder Adduct of 4-Phenyl-1, 2, 4-Triazoline-3, 5-Dione with Previtamin D3
✍ M. van Meerssche; B. Tinant; G. Germain; J. P. Declercq; L. J. Vanmaele; P. J. D 📂 Article 📅 2010 🏛 Wiley (John Wiley & Sons) ⚖ 271 KB 👁 2 views

C35H49!303, orthorhombic, P212121, a = 7.142(1), b = 11.873(4), c = 37.852(9)A; V = 3209.7(15)i3, D5 = 1.16 Mg m-3 for Z = 4 . been solved by direct methods (MULTAN 8 0 ) and refined to a final R value of 0.068 for 1920 observed reflections. The absolute stereochemistry of the title compound is show

ChemInform Abstract: Tandem Ene Addition
ChemInform Abstract: Tandem Ene Addition/Diels—Alder Cycloaddition Reactions of Methyl Linoleate with 4-Phenyl-1,2,4-triazoline-3,5-dione and Diethyl Azodicarboxylate.
✍ Jill F. McLellan; Roy M. Mortier; Stefan T. Orszulike; R. Michael Paton 📂 Article 📅 2000 🏛 John Wiley and Sons ⚖ 32 KB 👁 1 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