Stereochemical Studies, 106.–Saturated Heterocycles, 110 Synthesis of Methylene??bridged Partially Saturated Quinazolones

G Stájer, AE Szabó, F Fülöp, GÁB Bernáth…

Index: Stajer, Geza; Szabo, Angela E.; Fueloep, Ferenc; Bernath, Gabor; Sohar, Pal Chemische Berichte, 1987 , vol. 120, p. 259 - 264

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Citation Number: 21

Abstract

Abstract With imidates, esters (5–8) of di-endo (1 and 2) and di-exo (3 and 4) norbornane- and norbornene-ß-amino acids yield methylene-bridged tetrahydro-(18 and 20) and hexahydro-4-quinazolinones (17 and 19); the reaction of the corresponding carboxamides (9–12) with 4-chlorobenzaldehyde furnish hexahydro-(14 and 16) and octahydro-4- quinazolinones (13 and 15). The tetrahydro derivatives 18a, b can be selectively reduced ...