The Correct Structures of the ortho-Cyclized Products in the Cycloalkylations of 1-m-Methoxybenzyl-4,4a,5,6,7,8-Hexahydronaphthalen-2(3H)-One and 1-m-Methoxybenzyl-Octalins : X-Ray Structure Determination of (±)-4-Methoxy-9a-Carbamorphinan-16-One

Sitaram Pal Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Calcutta, 700 032, India

Monika Mukherjee Department of Solid State Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta, 700 032, India

Alok K. Mukherjee Department of Physics, Jadavpur University, Calcutta, 700 032, India

M. Helliwell Department of Chemistry, University of Manchester, Manchester, M139PL, England

Usha Ranjan Ghatak Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Calcutta, 700 032, India

Abstract

The previously assigned (ref.1) ortho-cycloalkylated product from the reaction of 1 and 2 respectively, with ortho-phosphosphoric acid and polyphosphoric acid, has been corrected to (±)-4-methoxy-9a-carbamorphinan-16-one (6) and the respective ether 7 by a single crystal X-ray structure determination of 6.

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The Correct Structures of the ortho-Cyclized Products in the Cycloalkylations of 1-m-Methoxybenzyl-4,4a,5,6,7,8-Hexahydronaphthalen-2(3H)-One and 1-m-Methoxybenzyl-Octalins : X-Ray Structure Determination of (±)-4-Methoxy-9a-Carbamorphinan-16-One

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The Correct Structures of the ortho-Cyclized Products in the Cycloalkylations of 1-m-Methoxybenzyl-4,4a,5,6,7,8-Hexahydronaphthalen-2(3H)-One and 1-m-Methoxybenzyl-Octalins : X-Ray Structure Determination of (±)-4-Methoxy-9a-Carbamorphinan-16-One

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