| | 1 | Author
| Reinhard Lüdersdorf, Klaus Praefcke, *. Herrn, Prof Dr | Requires cookie* | | | Title
| eine neue photoinduzierte Sauerstoff-Transfer-Reaktion 1 Photoreactions of 2-Sulfinyl Substituted Benzaldehydes - a New Photoinduced Oxygen-Transfer Reaction  | | | | Abstract
| The photochemical conversion of 2-sulfinyl substituted benzaldehydes into benzoic acids in a new type of redox reaction is discribed in which a transfer of an oxygen atom, originally attached to sulphur, takes place by insertion into the C-H bond of the aldehyde function located in ortho position. Influences of substituents at the sulfinyl group in this photo-reaction which seems to be limitated to aldehydes are discussed briefly. | | | |
Reference
| (Z. Naturforsch. 31b, 1658—1661 [1976]; eingegangen am 2. September 1976) | | | |
Published
| 1976 | | | |
Keywords
| Organic Sulfur Compounds, Sulfoxides, Photoredox Reaction, Photorearrangement, Aromatic Photosubstitution | | | |
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| default:Reihe_B/31/ZNB-1976-31b-1658.pdf | | | | Identifier
| ZNB-1976-31b-1658 | | | | Volume
| 31 | |
| 2 | Author
| Klaus Beelitz», Klaus Praefcke, -A, Salo Gronowitz | Requires cookie* | | | Title
| Pyrido [2,3-d] thieno [3,2-b] [6H]thiopyran - ein neues heterocyclisches Ringsystem [1] Pyrido [2,3-d]thieno[3,2-b] [6 H]thiopyran - a New Heterocyclic Ring System [1] | | | | Abstract
| UV irradiation of S-(3'-thienyl)2-chloro-thionicotinate (1) in benzene solution leads via dehydrohalogenation and cj clization in competition to a-cleavage to formation of thio-lactone 2 besides aldehyde 3 and disulphide 4. 2 contains a new heterocyclic ring system which has been confirmed by spectroscopic methods. Einführung | | | |
Reference
| Z. Naturforsch. 34b, 1573—1575 (1979); eingegangen am 4. Juli 1979 | | | |
Published
| 1979 | | | |
Keywords
| Organic Sulfur Compounds, Heterocycles, Thiolester, a-Cleavage, Dehydrohalogenation, Photocyclization, Aromatic Photosubstitution | | | |
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| default:Reihe_B/34/ZNB-1979-34b-1573.pdf | | | | Identifier
| ZNB-1979-34b-1573 | | | | Volume
| 34 | |
| 3 | Author
| Claudia Bäk, Klaus Praefcke | Requires cookie* | | | Title
| und dessen Cycloreversion Organic Sulfur Compounds, XLVII [1] Dimerization of Monothiobenzil to a 1,3-Dithietane and its Cycloreversion | | | | Abstract
| The thermal dimerization of monothiobenzil (lc) to a 1,3-dithietane (2c) and the photochemical cycloreversion of this heterocycle to 1 c is described. | | | |
Reference
| Z. Naturforsch. 35b, 372—375 (1980); eingegangen am 26. November 1979 | | | |
Published
| 1980 | | | |
Keywords
| Heterocycles, Organic Sulfur Compounds, a-Oxothiones, 1, 3-Dithietans, 1, 3-Oxathiols, Photoreactions | | | |
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| default:Reihe_B/35/ZNB-1980-35b-0372.pdf | | | | Identifier
| ZNB-1980-35b-0372 | | | | Volume
| 35 | |
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