Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Kurt Schank"'
Publikováno v:
Helvetica Chimica Acta. 90:1606-1649
Thioreductones and Derivatives. Replacement of one or two (principally also three) O-atoms in aci-reductones by sulfur leads to the corresponding thioreductones. In the present paper, different methods of their synthesis are discussed. Substitution o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::677e1a522bfd2248b4d1addffd17c4c2
https://doi.org/10.1002/hlca.200790169
https://doi.org/10.1002/hlca.200790169
Publikováno v:
Helvetica Chimica Acta. 88:3174-3199
Aminoreductones – Investigations on Species Containing the Carbon Arrangement of Dimedone and Secondary Amines as Building Blocks The ozonation of 3-(sec-amino)-5,5-dimethylcyclohex-2-en-1-ones 4 was compared with the corresponding acyloxylations b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b46aaadbbd559d4302b6389a4041b82
https://doi.org/10.1002/hlca.200590256
https://doi.org/10.1002/hlca.200590256
Publikováno v:
Helvetica Chimica Acta. 87:2025-2049
Ozonolysis of Enol Ethers. Part 8. Ozonation of (1-Methoxy-2-methylprop-1-enyl)-1,1′-biphenyl in Comparison with Related Oxygenations The results of conversions of 4-(1-methoxy-2-methylprop-1-enyl)-1,1′-biphenyl (19) with ozone and with dimethyld
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53ff087f20d26d825bc4797040b995f4
https://doi.org/10.1002/hlca.200490182
https://doi.org/10.1002/hlca.200490182
Autor:
Kurt Schank
Publikováno v:
Helvetica Chimica Acta. 87:2074-2084
The Mechanism of Alkene Ozonolysis – a Critical Examination. Alkene ozonolyses have been carried out in experimental organic chemistry for more than a century, and a lucid description of the underlying reaction mechanism has been developped and int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7b859d6b6d28e946e33321e7f613005
https://doi.org/10.1002/hlca.200490186
https://doi.org/10.1002/hlca.200490186
Publikováno v:
Helvetica Chimica Acta. 87:869-924
Chemistry of Free Cyclic Vicinal Tricarbonyl Compounds (‘1,2,3-Triones’). Part 3. Polar and Redox Reactions of 1,2,3-Triones with Enamines of Different Types – News on Oxonol Dyes, Radicals, and Biradicals The central CO groups of cyclic 1,2,3-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c168fff59a9c4c03c7cfb72fbe27f7cd
https://doi.org/10.1002/hlca.200490085
https://doi.org/10.1002/hlca.200490085
Publikováno v:
Helvetica Chimica Acta. 84:2071-2088
Chemistry of Free Cyclic Vicinal Tricarbonyl Compounds (`1,2,3-Triones'). Part 1. Reaction of Diazomethane and Its Derivatives with 5,5-Dimethylcyclohexane-1,2,3-trione (=`Oxo-dimedone') and Related Cyclohexane-1,2,3-triones Interactions of diazometh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e337352dc62fac458a1c91499a69dc34
https://doi.org/10.1002/1522-2675(20010711)84:7<2071::aid-hlca2071>3.0.co
https://doi.org/10.1002/1522-2675(20010711)84:7<2071::aid-hlca2071>3.0.co
Publikováno v:
Helvetica Chimica Acta. 84:1943-1951
Allenyl methyl ether (1) and (diphenylmethylene)cyclopropane (5) were ozonized with an ozone/oxygen mixture. Formation of the observed products cannot be satisfactorily rationalized via the familiar modified Criegee mechanism. However, a single-elect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8b5347d7326771f98e069634281ba09
https://doi.org/10.1002/1522-2675(20010711)84:7<1943::aid-hlca1943>3.0.co
https://doi.org/10.1002/1522-2675(20010711)84:7<1943::aid-hlca1943>3.0.co
Publikováno v:
Helvetica Chimica Acta. 83:3312-3332
Surprising Results during the Re-investigation of the Formation and Decomposition of Triptene Ozonide. Revision of the ozonolysis of triptene (=2,3,3-trimethylbut-1-ene; 1) revealed that molecular oxygen of an applied ozone/oxygen gas mixture partici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebcc8878bf4661bb757b076aa49a9267
https://doi.org/10.1002/1522-2675(20001220)83:12<3312::aid-hlca3312>3.0.co
https://doi.org/10.1002/1522-2675(20001220)83:12<3312::aid-hlca3312>3.0.co
Publikováno v:
Helvetica Chimica Acta. 83:1611-1624
Alkynes of sufficiently high nucleophilicity react with electrophilic O3 under conversion of the alkyne function to a vicinal dicarbonyl function. Contrary to earlier investigations with alkylated or arylated acetylene, products of complete C−C cle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1478bff089e3e00b660a922a76a8d89
https://doi.org/10.1002/1522-2675(20000705)83:7<1611::aid-hlca1611>3.0.co
https://doi.org/10.1002/1522-2675(20000705)83:7<1611::aid-hlca1611>3.0.co
Autor:
Susanne Pistorius, Jörg Eder, Kurt Schank, Horst P. Beck, Christiane Wagner, Michael Buschlinger, Thomas Heisel
Publikováno v:
Helvetica Chimica Acta. 83:801-826
Ozonolyses of 1,1,2,2-tetraphenylethene (TPE, 1) have been described many times in the literature, but the reports are contradictory. This reaction is particularly important for understanding the mechanism of alkene ozonolysis, in view of possible st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc81e219dcd3124f08a3e1107a660e2f
https://doi.org/10.1002/(sici)1522-2675(20000412)83:4<801::aid-hlca801>3.0.co
https://doi.org/10.1002/(sici)1522-2675(20000412)83:4<801::aid-hlca801>3.0.co