1921
DOI: 10.1002/cber.19210540407
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Über Benzopolymethylen‐Verbindungen, II.: Über bromhaltige alicyclische Substitutionsprodukte des Tetrahydro‐naphthalins (Tetralins) und über Δ 1 ‐Dihydro naphthalin (Δ 1 ‐Dialin)

Abstract: 597u n g e b e i z t e n P f l a n z e n f a s e r . Diese Tatsache hat nach iihnlicben Erfnhrungen, welche R. S c h o l I und Chr. S e e r mit dem linearen Dian thrachinonylendisulfid ') gemacht haben, nichts Uberraschendes.Weitere Umsetzungen mit dem 2.3-Dichlor-a naphthochinon behalten wir uns vor. 74. Julius v. Braun und Georg Eirschbaum: Ober Bensopolgmethylen-Verbindungen, 11. : 6ber bromhaltige alicyclische Subratitutioneprodukte des Tetrahydro-naphthalins 'Tetralins) und iibec J1-Dlhydro naphthalin (Jl… Show more

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Cited by 30 publications
(5 citation statements)
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“…trans -(±) - (1 RS ,2 SR )-1,2-Dibromo-1,2,3,4-tetrahydronaphthalene [(±)-29]. This compound was prepared following the procedure of v. Braun and Kirschbaum . To a refluxing solution of 28 (66.1 g, 0.5 mol) in 50 mL of hexane was added Br 2 (51.52 mL, 1.0 mol) at such a rate as to maintain reflux.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…trans -(±) - (1 RS ,2 SR )-1,2-Dibromo-1,2,3,4-tetrahydronaphthalene [(±)-29]. This compound was prepared following the procedure of v. Braun and Kirschbaum . To a refluxing solution of 28 (66.1 g, 0.5 mol) in 50 mL of hexane was added Br 2 (51.52 mL, 1.0 mol) at such a rate as to maintain reflux.…”
Section: Methodsmentioning
confidence: 99%
“…The transfer of oxygen from C-1 to C-2 of the substrate with retention of the trans stereochemistry is effected through the intermediacy of epoxide 25 , which is formed as an intermediate and can be followed by HPLC. Bromohydrin 30 is prepared either by hydrolysis of the trans dibromide 29 , which is available from the 1,2,3,4-tetrahydronaphthalene ( 28 ), or directly from 1,2- dihydronaphthalene ( 31 ) by treatment of the latter with N -bromosuccinimide in the presence of moist DMSO 9 a a (a) Br 2 , hexane; (b) acetone, H 2 O, NaHCO 3 ; (c) 1,3-dibromo-5,5-dimethylhydantoin, HClO 4 , THF; (d) 40% aqueous CH 3 NH 2 ; (e) (+)- l -tartaric acid, MeOH; (f) recrystallize; (g) NH 4 OH, CH 2 ,Cl 2 ; (h) BrCH 2 CH(OCH 3 ) 2 , K 2 CO 3 , CH 3 CN. …”
Section: Enantioselective Syntheses Of Amino Alcohol (+)-23mentioning
confidence: 99%
“…The remaining residue was subjected to further separation into its constituents by column chromatography using ether-pentane as eluent as discussed before. 1,1 -Bitetralyl eluted from column chromatography using 2% mixture of ether-pentane, mp and mmp113 • C; on heating with elemental sulfur give bis-naphthylene [26]; m/e 262. The results are summarized in Table 1.…”
Section: Thermal Fragmentation Of N-p-chlorophenylbenzamide Oxime I Imentioning
confidence: 99%
“…1,1 0 -Bitetralyl, mp 112 8C (lit [20]; mp 113 8C). 1-Phenylisoquinoline, crystallized from benzene-light petroleum (60-80 8C), mp 95-97 8C (lit [21], mp 95-96 8C).…”
Section: Preparation Of Reference Compoundsmentioning
confidence: 99%