264:. A new interesting rearrangement of 3-substituted coumarins to 2-oxochromans-4-acetic acid derivatives was found for the first time. It is used for elaboration of preparative methods for conversion of nitriles, esters and amides of coumarin-3-carboxylic acid into the corresponding rearranged products.
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in 1963. Ivanov was Head of the
Department of Organic Chemistry from 1963 until his retirement in 1984, Vice Rector of Sofia University (1962–1968), Dean of the Faculty of Chemistry (1972–1976). He was member of the Presidium (1980–1986) and later President of the Committee of Chemical Sciences of
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at the universities of
Leipzig (1953–1954) and Moscow (1956–1957). His academic career is associated with the University of Sofia – its Physico-Mathematical Faculty and the later Faculty of Chemistry that branched off from it (1961). He received an Associate Professorship in 1957 and full
171:. For the contribution to the advancement of science in his research, he was awarded the Cyril-and-Methodius medal (1st degree), the People's-Republic-of-Bulgaria medal (1st degree), and the Honorary medallion with Necklace of the "St. Kliment Ohridski" University of Sofia.
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Bojilova, Anka; Nikolova, R.; Ivanov, Christo; Rodios, Nestor A.; Terzis, A.; Raptopoulou, C. P.; A Comparative Study of the
Interaction of Salicylaldehydes with Phosphonoacetates under Knoevenagel Reaction Conditions. Synthesis of 1,2-Benzoxaphosphorines and their Dimers,
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The
Laboratory of Organic Synthesis supervised by Ivanov also achieved a number of breakthroughs in organic synthesis. New synthetic methods were developed, involving the reaction of ambident nucleophilic reagents (prepared by metalation of esters,
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leading to 2-styrylbenzazols or alcohols having a benzazole ring. Detailed studies have been done under the conditions of the
Michael reaction on the addition of metallic derivatives of CH-acidic compounds to substrates containing
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145:, when Khristo Ivanov was just two. His mother, Elena Khristova, took care of her one and only son. Khristo Ivanov obtained his degree in chemistry from the Physico-Mathematical Faculty of
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Bojilova, Anka; Trendafilova, Antoaneta; Ivanov, Christo; Rodios, Nestor A.; Cyclopropanation
Reaction of 3-Acyl-2H-1-Benzopyran-2-ones with Phenacylbromide in Phase Transfer Systems,
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Ivanov died on 16 February 2004 at the age of 87 after a short illness. On the occasion the 100th anniversary of hir birth a comprehensive biographical article was recently published.
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Khristo Ivanov (Bulgarian: Христо Иванов) was born on 3 May 1916 in the town of
Dobrich, Bulgaria. His father Ivan Khristov was a hardware man, who died in 1918 after having fought in
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and amides of alkanoic and arylacetic acids) with N-acylated aldimines and ketimines. The resulting new derivatives of 3-acylaminopropanoic acids were transformed into various
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Christo Ivanov, Anka
Bojilowa; Umwandlung von 2-Oxo-2H-1-benzopyran-3-carbonsäureestern in 2-Oxo-4-chromanessigsäureester - eine neue Umlagerung,
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Anka
Bojilova, Nestor Rodios, Rositsa Nicolova, Christo Ivanov; Reactions of 3-acyl-substituted 2H-1-benzopyran-2-ones with acid anhydrides, II.
282:"Deans' list / History / Faculty of Chemistry and Pharmacy / Faculties / The University / Home - Софийски университет "Св. Климент Охридски""
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In collaboration with Peter Markov, Ivanov established for the first time the possibility for metalation of CH-acidic compounds with
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for a few years, he acquired the position of regular
Assistant Professor at the same faculty in 1946. He specialized in the field of
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Peter Markov, Liliana Dimitrova und Khristo Ivanov; Über die Reaktion von Biphenyl mit Magnesium in flüssigem Ammoniak,
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Khristo Ivanov continued the research started by his predecessor Dimitar Ivanov of the
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Ivanov and his lab studied in detail the reaction of 2-benzylbenzazoles with aromatic
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Ivanov was the initiator of studies on the reaction of nucleophilic reagents with
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I. C. Ivanov; A Centenary of the Birth of Professor Christo Ivanov,
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or azomethine group or to substrates with an activated double bond.
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Christo Ivanov; Prof. Dimiter Ivanov – Life and Scientific Work,
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in 1939. After teaching Chemistry at school level in the towns of
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345:Monatshefte für Chemie / Chemical Monthly
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248:in the presence of a water solution of
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90:Organic Chemistry, Organic Synthesis
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477:20th-century Bulgarian scientists
104:Faculty of Chemistry and Pharmacy
162:Professorship and the Chair of
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419:, 111 (12), pp. 3755 – 3763.
211:Bulgarian Academy of Sciences
184:Bulgarian Academy of Sciences
169:Higher Attestation Commission
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436:Liebigs Annalen der Chemie
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207:Prof. Asen Zlatarov Award
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192:organometallic compounds
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223:heterocyclic compounds
240:under phase-transfer
472:People from Dobrich
99:University of Sofia
457:Bulgarian chemists
417:Chemische Berichte
399:2011-07-10 at the
373:2011-07-10 at the
164:Organic Chemistry
159:organic synthesis
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250:sodium hydroxide
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95:Institutions
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467:2004 deaths
462:1916 births
391:Tetrahedron
365:Tetrahedron
143:World War I
70:Nationality
451:Categories
292:2016-03-12
268:References
201:in liquid
188:carbanions
51:2004-02-17
29:3 May 1916
262:coumarins
242:catalysis
238:aldehydes
199:magnesium
128:Bulgarian
120:Bulgarian
74:Bulgarian
397:Archived
371:Archived
255:carbonyl
246:solvents
231:oxazines
219:nitriles
63:Bulgaria
37:Bulgaria
209:by the
203:ammonia
155:Karlovo
49: (
33:Dobrich
229:, 1,3-
151:Popovo
87:Fields
59:Sofia
432:1991
413:1978
387:1993
361:1996
341:1976
324:2012
307:2016
190:and
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