FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2079891931> ?p ?o ?g. }

• W2079891931 endingPage "178" @default.
• W2079891931 startingPage "172" @default.
• W2079891931 abstract "A new and convenient route for the synthesis of several heterotetra- and pentacyclic compounds is presented. Heating the 2-vinyl-N,N-dialkylanilines 3a-h, synthesized from the aldehydes 2a-f,h or the acetophenone 2g and malononitrile or ethyl cyanoacetate, in refluxing 1-butanol yields selectively the tetra- and pentacyclic compounds 4a-h. This cyclization proceeds via a 1,5 hydrogen shift, followed by an addition of the carbanion to the iminium double bond. The benzo[f]thieno[3,2-a]quinolizine 4c and the benzo[f]thieno[2,3-a]quinolizine 4d represent new classes of heterocycles. The first example of formation of a six-membered ring via carboncarbon bond formation, starting from 2-vinyl-substituted enamines, was the conversion of 5a and 5b into the benzo[h]pyrrolo[1,2-a]-quinoline 6a and the naphtho[2,1-c]quinolizine 6b, respectively. Most probably, the cyclization of 5a and 5b proceeds in the same way as does the cyclization of the 2-vinyl N,N-disubstituted aniline derivatives. Heating the tricyano compound 5c in refluxing 1-butanol gave both the benzo[g]pyrrolo[1,2-a]indole 7 and malononitrile. This cyclization proceeds probably via a 1,6 hydrogen shift, followed by a 1,5 electrocyclization, and a subsequent fast elimination of malononitrile." @default.
• W2079891931 created "2016-06-24" @default.
• W2079891931 creator A5009580893 @default.
• W2079891931 creator A5016261068 @default.
• W2079891931 creator A5045120040 @default.
• W2079891931 creator A5054594631 @default.
• W2079891931 creator A5063396567 @default.
• W2079891931 date "1989-01-01" @default.
• W2079891931 modified "2023-10-16" @default.
• W2079891931 title "The “tert-amino effect” in heterocyclic chemistry: Synthesis of tetra- and pentacyclic compounds" @default.
• W2079891931 cites W1554291772 @default.
• W2079891931 cites W1583948924 @default.
• W2079891931 cites W1976519183 @default.
• W2079891931 cites W1980092491 @default.
• W2079891931 cites W1980269030 @default.
• W2079891931 cites W1981815370 @default.
• W2079891931 cites W1985995743 @default.
• W2079891931 cites W1992682817 @default.
• W2079891931 cites W1996284259 @default.
• W2079891931 cites W2004081312 @default.
• W2079891931 cites W2013430722 @default.
• W2079891931 cites W2013491748 @default.
• W2079891931 cites W2024397092 @default.
• W2079891931 cites W2025022492 @default.
• W2079891931 cites W2027570172 @default.
• W2079891931 cites W2030341624 @default.
• W2079891931 cites W2038359575 @default.
• W2079891931 cites W2040127820 @default.
• W2079891931 cites W2040730842 @default.
• W2079891931 cites W2044742296 @default.
• W2079891931 cites W2051113621 @default.
• W2079891931 cites W2067407738 @default.
• W2079891931 cites W2077175333 @default.
• W2079891931 cites W2079891931 @default.
• W2079891931 cites W2090430044 @default.
• W2079891931 cites W2105405471 @default.
• W2079891931 cites W2119152184 @default.
• W2079891931 cites W2168804411 @default.
• W2079891931 cites W2168851674 @default.
• W2079891931 cites W2313561868 @default.
• W2079891931 cites W2324666014 @default.
• W2079891931 cites W2940049984 @default.
• W2079891931 cites W2952696069 @default.
• W2079891931 cites W4239784493 @default.
• W2079891931 cites W4240480349 @default.
• W2079891931 cites W4246245395 @default.
• W2079891931 cites W911565020 @default.
• W2079891931 doi "https://doi.org/10.1002/recl.19891080503" @default.
• W2079891931 hasPublicationYear "1989" @default.
• W2079891931 type Work @default.
• W2079891931 sameAs 2079891931 @default.
• W2079891931 citedByCount "19" @default.
• W2079891931 countsByYear W20798919312018 @default.
• W2079891931 countsByYear W20798919312020 @default.
• W2079891931 crossrefType "journal-article" @default.
• W2079891931 hasAuthorship W2079891931A5009580893 @default.
• W2079891931 hasAuthorship W2079891931A5016261068 @default.
• W2079891931 hasAuthorship W2079891931A5045120040 @default.
• W2079891931 hasAuthorship W2079891931A5054594631 @default.
• W2079891931 hasAuthorship W2079891931A5063396567 @default.
• W2079891931 hasConcept C155647269 @default.
• W2079891931 hasConcept C161790260 @default.
• W2079891931 hasConcept C178790620 @default.
• W2079891931 hasConcept C185592680 @default.
• W2079891931 hasConcept C192527728 @default.
• W2079891931 hasConcept C2775888733 @default.
• W2079891931 hasConcept C2776309666 @default.
• W2079891931 hasConcept C2777873363 @default.
• W2079891931 hasConcept C2778567177 @default.
• W2079891931 hasConcept C2779244968 @default.
• W2079891931 hasConcept C2780513484 @default.
• W2079891931 hasConcept C68381374 @default.
• W2079891931 hasConcept C82894169 @default.
• W2079891931 hasConceptScore W2079891931C155647269 @default.
• W2079891931 hasConceptScore W2079891931C161790260 @default.
• W2079891931 hasConceptScore W2079891931C178790620 @default.
• W2079891931 hasConceptScore W2079891931C185592680 @default.
• W2079891931 hasConceptScore W2079891931C192527728 @default.
• W2079891931 hasConceptScore W2079891931C2775888733 @default.
• W2079891931 hasConceptScore W2079891931C2776309666 @default.
• W2079891931 hasConceptScore W2079891931C2777873363 @default.
• W2079891931 hasConceptScore W2079891931C2778567177 @default.
• W2079891931 hasConceptScore W2079891931C2779244968 @default.
• W2079891931 hasConceptScore W2079891931C2780513484 @default.
• W2079891931 hasConceptScore W2079891931C68381374 @default.
• W2079891931 hasConceptScore W2079891931C82894169 @default.
• W2079891931 hasIssue "5" @default.
• W2079891931 hasLocation W20798919311 @default.
• W2079891931 hasOpenAccess W2079891931 @default.
• W2079891931 hasPrimaryLocation W20798919311 @default.
• W2079891931 hasRelatedWork W1603772961 @default.
• W2079891931 hasRelatedWork W2079891931 @default.
• W2079891931 hasRelatedWork W2083527014 @default.
• W2079891931 hasRelatedWork W2105639335 @default.
• W2079891931 hasRelatedWork W2347003820 @default.
• W2079891931 hasRelatedWork W2952470542 @default.
• W2079891931 hasRelatedWork W2952696069 @default.
• W2079891931 hasRelatedWork W2953022702 @default.

• next