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Уважаемые коллеги! Помогите скачать статьи:

1. Organic Preparations and Procedures International Volume 23, Issue 3, p. 273-320 (1991)
THE CHEMISTRY OF PYRAZOLIDINONES. A REVIEW
Rosa María Claramunt; José Elguero

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http://dx.doi.org/10.1080/00304949109458208 

2. Organic Preparations and Procedures International Volume 23, Issue 4, p. 443-447 (1991)
APPLICATION OF POTASSIUM t-BUTOXIDE IN TOLUENE AS A BASE IN THE WITTIG REACTION IN LARGE-SCALE PHEROMONE SYNTHESES
Péter Vinczer; Lajos Novák; Csaba Szántay

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http://dx.doi.org/10.1080/00304949109458234

3. Organic Preparations and Procedures International Volume 23, Issue 5, p. 651-654 (1991)
OXIDATION OF ADAMANTANE TO 1-ADAMANTANOL USING TETRA-N-BUTYLAMMONIUM OXONE
Rajkumar Kumarathasan; Norman R. Hunter

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http://dx.doi.org/10.1080/00304949109457919

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