Reactions of 5-Indolizyl Lithium Compounds with Some Bielectrophiles
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منابع مشابه
Reactions of 5-Indolizyl Lithium Compounds with Some Bielectrophiles.
Abstract: Indolizyl-5-lithium anions react with succinic and phtalic anhidrides giving 1,4-keto acids, with oxallyl chloride giving 1,2-diketone, and with ethyl pyruvate giving 1,2-hydroxyacid. However, with α-halocarbonyl compounds, they react in different ways, forming the products of selective bromination at C-5 (with α-bromo ketones and esters of α-bromo acids) and 5-chloroacetyl indolizines.
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SOME UNUSUAL REACTIONS OF 3-PHENYLAMINOISOXAZOL-5 (2H)- ONES
3-Phenylaminoisoxazol-5(2H)-ones,s ubstituted on nitrogen with an isoquinoline or quinazoline group, react with tertiary amine bases to give imidazo annelated compounds. When the N-substituent is a nitropyridine, 2-aminoindole derivatives are formed instead. Evidence is presented that the reactions proceed by initial addition of the tertiary arnine to C-4
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A fast, general, environmentally friendly and facile method for preparation of five- and six-membered ring diazaheterocylic salts under microwave irradiation is presented. The N-alkylation reactions of imidazole, pyrimidine, pyridazine and phthalazine have been studied. The microwaves remarkably accelerated these N-alkylations, the reaction times decreased dramatically, the reaction conditions ...
متن کاملsome unusual reactions of 3-phenylaminoisoxazol-5 (2h)- ones
3-phenylaminoisoxazol-5(2h)-ones,s ubstituted on nitrogen with an isoquinoline or quinazoline group, react with tertiary amine bases to give imidazo annelated compounds. when the n-substituent is a nitropyridine, 2-aminoindole derivatives are formed instead. evidence is presented that the reactions proceed by initial addition of the tertiary arnine to c-4
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ژورنال
عنوان ژورنال: Molecules
سال: 2017
ISSN: 1420-3049
DOI: 10.3390/molecules22040661