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Showing 1 to 3 of 3 for “"NITRILOXIDES"”.
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ΜΕΛΕΤΗ ΑΝΤΙΔΡΑΣΕΩΝ ΠΡΟΣΘΗΚΗΣ ΠΥΡΑΖΟΛΙΚΩΝ ΣΥΣΤΗΜΑΤΩΝ ΜΕ 1, 3-ΔΙΠΟΛΑ ΚΑΙ ΚΕΤΕΝΕΣ
… OF THE REACTIONS OF PYRAZOLES DERIVATIVES WITH NITRILOXIDES, NITRILIMINESAND KETENES. NON AROMATIC METHYLENE- PYRAZOLES IN PRESENCE OF NITRILOXIDE AND NITRILIMINES UNDERGO STEREOSELECTIVELY 1,3-DIPOLAR CYCLOADDITION, IN PRESENCE OF DIPHENYLNETENE THE CORRESPONDING 1-DIPHENYL-ACETYL …
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ΜΕΛΕΤΗ ΑΝΤΙΔΡΑΣΕΩΝ ΔΙΑΡΥΛΟΙΩΔΩΝΙΑΚΩΝ ΚΑΙ ΦΑΙΝΥΛΟ(Β-ΑΡΥΛΟΑΙΘΙΝΥΛΟ) ΙΩΔΩΝΙΑΚΩΝ ΑΛΑΤΩΝ
… IODONIUM SALTS REACT AS 1,3-DIPOLAROPHILES WITH NITRILOXIDES TO AFFORD PHENYL (SUBSTITUTED ISOXAZOLYL) IODONIUM SALTS. THE CHEMICAL PROPERTIES OF THE CYCLOADDITION PRODUCTS IS BRIEFLY EXAMINED. PHENYL (ARYLETHYNYL) IODONIUM SALTS REACT ALSO WITH NITRONES BUT THE RESULTING PHENYL (SUBSTITUTED …
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ΜΕΛΕΤΗ ΑΝΤΙΔΡΑΣΕΩΝ 1,3-ΔΙΠΟΛΙΚΗΣ ΚΥΚΛΟΠΡΟΣΘΗΚΗΣ ΣΕ ΕΤΕΡΟΚΥΚΛΙΚΑ ΣΥΣΤΗΜΑΤΑ
… AND (E)-A- BENZAMIDO- CINNAMATES WITH NITRILOXIDES AND NITRILIMINES WERE ALSO EXAMINED. THESE REACTIONS SHOW THESAME REGIOSELECTIVELY AND GIVE THE SAME PRODUCTS OBTAINED FROM THE METHANOLYSIS OF THE (Z)- AND (E)-SPIRO CYCLOADDUCTS RESPECTIVELY, CONFIRMING THAT NUCLEOPHILIC CLEAVAGE OF …