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Cläre Hunsdiecker
Cläre Hunsdiecker () (1903–1995) was a German chemist who worked with her husband Heinz Hunsdiecker (1904–1981) to improve a reaction of Alexander Borodin now known as the Hunsdiecker reaction. They received both US and German patents for the work. Education Hunsdiecker earned her Ph.D. from the University of Cologne. For many years, it was believed that there was no photographic image of Hunsdiecker in existence. In 2020, an image was located by an undergraduate student at the University of Melbourne The University of Melbourne (colloquially known as Melbourne University) is a public university, public research university located in Melbourne, Australia. Founded in 1853, it is Australia's second oldest university and the oldest in the state .... References 1903 births 1995 deaths Place of birth missing Place of death missing 20th-century German chemists German women chemists 20th-century German women {{Germany-chemist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinz Hunsdiecker
Heinz Hunsdiecker (22 January 1904 – 22 November 1981) was a German chemist who together with his wife Cläre Hunsdiecker (1903–1995) improved a reaction of Alexander Borodin now known as the Hunsdiecker reaction. They received both US and German patents for the work. References 1904 births 1981 deaths 20th-century German chemists {{Germany-chemist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Borodin
Alexander Porfiryevich Borodin (12 November 183327 February 1887) was a Russian Romantic composer and chemist of Georgian–Russian parentage. He was one of the prominent 19th-century composers known as " The Five", a group dedicated to producing a "uniquely Russian" kind of classical music. Abraham, Gerald. ''Borodin: the Composer and his Music''. London, 1927. Borodin is known best for his symphonies, his two string quartets, the symphonic poem '' In the Steppes of Central Asia'' and his opera '' Prince Igor''. A doctor and chemist by profession and training, Borodin made important early contributions to organic chemistry. Although he is presently known better as a composer, he regarded medicine and science as his primary occupations, only practising music and composition in his spare time or when he was ill. As a chemist, Borodin is known best for his work concerning organic synthesis, including being among the first chemists to demonstrate nucleophilic substitution, as w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hunsdiecker Reaction
The Hunsdiecker reaction (also called the Borodin reaction or the Hunsdiecker–Borodin reaction) is a name reaction in organic chemistry whereby silver salts of carboxylic acids react with a halogen to produce an organic halide. It is an example of both a decarboxylation and a halogenation reaction as the product has one fewer carbon atoms than the starting material (lost as carbon dioxide) and a halogen atom is introduced its place. A catalytic approach has been developed. : History The reaction is named after Cläre Hunsdiecker and her husband Heinz Hunsdiecker, whose work in the 1930s developed it into a general method. The reaction was first demonstrated by Alexander Borodin in 1861 in his reports of the preparation of methyl bromide () from silver acetate (). Three decades later, Angelo Simonini, working as a student of Adolf Lieben at the University of Vienna, investigated the reactions of silver carboxylates with iodine. He found that the products formed are d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Cologne
The University of Cologne () is a university in Cologne, Germany. It was established in 1388. It closed in 1798 before being re-established in 1919. It is now one of the largest universities in Germany with around 45,187 students. The University of Cologne is a member of the U15 (German universities), German U15 association of major research-intensive universities and was a university of excellence as part of the German Universities Excellence Initiative from 2012 to 2019. It is constantly ranked among top 20 German universities in the world rankings. The University of Cologne has 5 Clusters of Excellence: CECAD Cluster of Excellence for Aging Research, Cluster of Excellence ECONtribute: Markets & Public Policy, CEPLAS Cluster of Excellence for Plant Sciences, ML4Q Cluster of Excellence Matter and Light for Quantum Information and DYNAVERSE Cluster of Excellence. As of 2025, among its notable alumni, faculty and researchers are 5 List of Nobel laureates, Nobel Laureates, 11 Le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Melbourne
The University of Melbourne (colloquially known as Melbourne University) is a public university, public research university located in Melbourne, Australia. Founded in 1853, it is Australia's second oldest university and the oldest in the state of Victoria (Australia), Victoria. Its Parkville Campus (University of Melbourne), main campus is located in Parkville, Victoria, Parkville, an inner suburb north of Melbourne central business district, Melbourne's central business district, with several other campuses located across the state of Victoria (Australia), Victoria. Incorporated in the 19th century by the State of Victoria, colony of Victoria, the University of Melbourne is one of Australia's six sandstone universities and a member of the Group of Eight (Australian universities), Group of Eight, Universitas 21, Washington University in St. Louis, Washington University's McDonnell International Scholars Academy, and the Association of Pacific Rim Universities. Since 1872, many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1903 Births
Events January * January 1 – Edward VII is proclaimed Emperor of India. * January 10 – The Aceh Sultanate was fully annexed by the Dutch East Indies, Dutch forces, deposing the last sultan, marking the end of the Aceh War that have lasted for almost 30 years. * January 19 – The first west–east transatlantic radio broadcast is made from the United States to England (the first east–west broadcast having been made in 1901#December, 1901). February * February 13 – Venezuelan crisis of 1902–03, Venezuelan crisis: After agreeing to arbitration in Washington, the United Kingdom, Germany and Italy reach a settlement with Venezuela resulting in the Washington Protocols. The naval blockade that began in 1902 ends. * February 23 – Cuba leases Guantánamo Bay to the United States "in perpetuity". March * March 2 – In New York City, the Martha Washington Hotel, the first hotel exclusively for women, opens. * March 3 – The British Admir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1995 Deaths
This is a list of lists of deaths of notable people, organized by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked below. 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 Earlier years ''Deaths in years earlier than this can usually be found in the main articles of the years.'' See also * Lists of deaths by day * Deaths by year (category) {{DEFAULTSORT:deaths by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Place Of Birth Missing
Place may refer to: Geography * Place (United States Census Bureau), defined as any concentration of population ** Census-designated place, a populated area lacking its own municipal government * "Place", a type of street or road name ** Often implies a dead end (street) or cul-de-sac * Place, based on the Cornish word "plas" meaning mansion * Place, a populated place, an area of human settlement ** Incorporated place (see municipal corporation), a populated area with its own municipal government * Location (geography), an area with definite or indefinite boundaries or a portion of space which has a name in an area Placenames * Placé, a commune in Pays de la Loire, Paris, France * Plače, a small settlement in Slovenia * Place (Mysia), a town of ancient Mysia, Anatolia, now in Turkey * Place, New Hampshire, a location in the United States Facilities and structures * Place House, a 16th-century mansion largely remodelled in the 19th century, in Fowey, Cornwall, Engl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Women Chemists
German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also German nationality law **Germanic peoples (Roman era) *German diaspora * German language * German cuisine, traditional foods of Germany People * German (given name) * German (surname) * Germán, a Spanish name Places * German (parish), Isle of Man * German, Albania, or Gërmej * German, Bulgaria * German, Iran * German, North Macedonia * German, New York, U.S. * Agios Germanos, Greece Other uses * German (mythology), a South Slavic mythological being * Germans (band), a Canadian rock band * "German" (song), a 2019 song by No Money Enterprise * ''The German'', a 2008 short film * "The Germans", an episode of ''Fawlty Towers'' * ''The German'', a nickname for Congolese rebel André Kisase Ngandu See also * Germanic (disambiguati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
