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Acetylenchemie 11. Mitt.: Synthese und Kristallstruktur des 11-Isopropyliden-1a,10b-dihydro-1H-1,6-methanodibenzo[b,f]cyclopropa[d]azepins (1989)

Reisch, Johannes ; Salehi-Artimani, Reza A. ; Henkel, Gerald

Springer

Monatshefte für Chemie 120 (1989), S. 797-800

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ISSN: 1434-4475

Keywords: 5H-Dibenzo[b,f]azepine ; Alkynylation ; Phase-transfer catalysis ; X-ray diffraction

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Summary The synthesis of 11-isopropyliden-1a,10b-dihydro-1H-1,6-methano-dibenzo[b,f]cyclopropa[d]azepine by phase-transfer catalysed reaction of 5H-dibenzo[b, f]azepine with 2-chloro-2-methyl-3-butyne is described. The structure is confirmed by X-ray diffraction.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00809974

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Acetylenchemie 7. Mitt.: Mechanistische Studien zur Synthese von Pyrano-[3,2-c]chinolin-Alkaloiden aus 4-Hydroxychinolin-2-onen und 3-Chlor-3-methylbut-1-in (1988)

Reisch, Johannes ; Salehi-Artimani, Reza A. ; Bathe, Andreas ; [et al.]

Springer

Monatshefte für Chemie 119 (1988), S. 781-791

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ISSN: 1434-4475

Keywords: Pyrano[3,2-c]quinoline-alkaloids ; 4-Hydroxyquinoline-2-ones ; Alkylation ; Phase-transfer-catalysis ; Sigmatropic rearrangement ; “Späth type” chromene synthesis

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Abstract The pyrano-cyclisation of 4-hydroxy-(1-methyl)-1H-quinoline-2-one with 3-chlor-3-methylbut-1-yne, supposed to proceed via an ether or vinyl intermediate, is studied by alkylating different 4-hydroxyquinolines. The nine derivatives characterized favour the ether-pathway (“Späth type” chromene synthesis).

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00809691

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