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The preparation of vicinal difluoroolefinic carbonyl compounds and their application to the synthesis of difluororetinal analogs

✍ Scribed by A.E Asato; R.S.H Liu

Publisher
Elsevier Science
Year
1986
Tongue
French
Weight
233 KB
Volume
27
Category
Article
ISSN
0040-4039

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✦ Synopsis

The preparation of a novel vicinal difluorinated retinal analog is described.

The key difluoroolefinic intermediate in the synthesis was prepared by the reaction of DAST with ethyl acetoacetate.

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A Facile Synthesis of Vicinal Diamines P
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## 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.

A Facile Synthesis of Vicinal Diamines P
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## Abstract An efficient homocoupling of imines to give vicinal diamines promoted by low‐valent niobium, generated by treatment of NbCl~5~ with zinc powder, is described. The desired products were obtained in good to excellent yields. Dihydroisoquinoline derivatives also gave the coupling products