The conformational equilibria of 4,4a,5,6-tetrahydro-1H,3H-[1,3]oxazino [3,4-a]quinoline, 3,4,11,11a-tetrahydro-1H,6H-[1,3]oxazino[3,4-b]isoquinoline and 1,6,7,11b-tetrahydro-2H,4H-[1,3]oxazino[4,3-a]isoquinoline
โ Scribed by T.A. Crabb; R.F. Newton
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- French
- Weight
- 168 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
The geminal coupling constant C-8.0 Hz) for the N-CH2-0 protons in hexahydro-l&3!-pyrido [1,2-cl[1,3loxazine (1)' when compared with the corresponding n.m.r. parameter in cis-8,12a, -
๐ SIMILAR VOLUMES
## Abstract __cis__(4โH,11bโH)โ4โArylโ1,6,7,11bโtetrahydroโ2__H__,4__H__โ[1,3]oxazino [4,3โ__a__]isoquinoline and the related thiazino compound preferentially adopt in solution the O (or S) inside __cis__โconformation in contrast to __cis__(1โH,4aโH)โ1โarylperhydropyrido[1,2โ__c__][1,3]oxazine whic
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract On treatment with lead tetraacetate (Pb(OAc)~4~), the 1โ(alkylidene)โ1,2,3,4โtetrahydroโ__N__โ(trichloroacetyl)isoquinolines **2a**โ**2c** as well as the tribromoacetyl derivative **4** undergo an oxidative cyclization with concomitant migration of the trihalogenomethyl group to afford