✦ LIBER ✦

A new method for generation and intramolecular diels-alder reaction of N-acyl and N-alkoxycarbonyl-1-aza-1,3-butadibnes. A one-pot synthesis of 1,7,8,8a-tetrahydro-3(2H)-indolizinones and 1,2,3,8,9,9a-hexahydro-4(4h)-quinolinones from α,β-unsaturated aldehydes

✍ Scribed by Tadao Uyehara; Ichiro Suzuki; Yoshinori Yamamoto

Publisher: Elsevier Science
Year: 1990
Tongue: French
Weight: 210 KB
Volume: 31
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)97462-8

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✦ Synopsis

Aone-pottmmf~,madeupofi~~ofN~from@ unsaturatedaldehyde,ii)~ofthe~yigrarpbyscylando~~groups,andiii~ intlamolecIllar Diels-Al&r reedion of the rc3ultlng q&hlMamM N-acyl-andarelatedNo carbonyl-1 -aza-1,3-butadienes in boil & (51, the 2-oxa dchatiw of 5, izn he, gave 1,7,8,8a-tctrahydm-3(2H)-1, ,3,8,9,9a--4-b iajmdicalykldt3. ~o~Diels_Atdaof~dahretivesofl~l,3bueadieae(4)isaquite~~l~ to~nitmgenc~V,audt= 1,7,8,8a-tet&dm3MLii(5~, he 2-oxa derhtivea of 5 (6), and 1,2,3,8,9,9a-hexal1ydro-4(4~quino~ (71, and akw indolizidine and cpi.noma&l Thconlygamalmdhalforprephnof4wasthe&Bsh ~pyrdysis(Evp)of Nkcyl-OacetyldedvatlvcsofNallylhydto~(2).l~ Wenowrqxxtaom-potmethodfor8umath

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