neighbouring-group participation


neighbouring-group participation
anchimerinis efektas statusas T sritis chemija apibrėžtis Gretimos grupės poveikis reakcijos centrui. atitikmenys: angl. anchimeric assistance; neighboring-group participation; neighbouring-group participation; synartetic acceleration rus. анхимерное содействие

Chemijos terminų aiškinamasis žodynas – 2-asis patais. ir papild. leid. – Vilnius: Mokslo ir enciklopedijų leidybos institutas. . 2003.

Look at other dictionaries:

  • Neighbouring group participation — or NGP in organic chemistry has been defined by IUPAC as the interaction of a reaction centre with a lone pair of electrons in an atom or the electrons present in a sigma bond or pi bond [1]. When NGP is in operation it is normal for the reaction …   Wikipedia

  • neighbouring group participation — noun Any of many effects in organic chemistry in which the course of a reaction, or its rate, is affected by the presence of a neighbouring functional group; anchimeric assistance …   Wiktionary

  • neighboring-group participation — anchimerinis efektas statusas T sritis chemija apibrėžtis Gretimos grupės poveikis reakcijos centrui. atitikmenys: angl. anchimeric assistance; neighboring group participation; neighbouring group participation; synartetic acceleration rus.… …   Chemijos terminų aiškinamasis žodynas

  • History of the Macedonians (ethnic group) — The history of the Macedonian people is closely associated with the historical and geographical region of Macedonia, and is manifested with their constant struggle for an independent state. After many decades of insurrections and living through… …   Wikipedia

  • Italian participation in the Eastern Front — The Italian participation in the Eastern Front of World War II began after the launch of Operation Barbarossa ( Unternehmen Barbarossa ) on 22 June 1941. Barbarossa was the German war against the Soviet Union. To show solidarity with the Germans …   Wikipedia

  • Dutch (ethnic group) — Infobox Ethnic group group=The Dutch (Nederlanders) Dutch people talking on the street poptime= 20 million 31.5 million(Blue → Dutch born) (Green → Reported ancestry) region1 = flagcountry|Netherlands pop1 = 13,186,600 (Ethnic Dutch)… …   Wikipedia

  • People's War Group — Communist Party of India (Marxist Leninist) People s War, usually called People s War Group (PWG), was an underground communist party in India. It merged the Maoist Communist Centre of India to form the Communist Party of India (Maoist) in 2004.… …   Wikipedia

  • Chemical glycosylation — A chemical glycosylation reaction involves the coupling of a sugar to a glycosyl acceptor forming a glycoside.[1][2][3] If the acceptor is another sugar, the product is an oligosaccharide. The reaction involves coupling a glycosyl donor to a… …   Wikipedia

  • SN1 reaction — The SN1 reaction is a substitution reaction in organic chemistry. SN stands for nucleophilic substitution and the 1 represents the fact that the rate determining step is unimolecular [ L. G. Wade, Jr., Organic Chemistry , 6th ed.,… …   Wikipedia

  • reaction mechanism — Introduction       in chemical reactions (chemical reaction), the detailed processes by which chemical substances are transformed into other substances. The reactions themselves may involve the interactions of atoms (atom), molecules (molecule),… …   Universalium