Results 241 to 250 of about 5,020 (301)
Some of the next articles are maybe not open access.
Benzoin 4-ethylthiosemicarbazone
Acta Crystallographica Section C Crystal Structure Communications, 2005In the title compound, 2-hydroxy-1,2-diphenylethanone 4-ethylthiosemicarbazone, C17H19N3OS, the thiosemicarbazone moiety is planar and has an E configuration. The planar phenyl rings make dihedral angles of 82.34 (8) and 8.07 (17) degrees with the plane of the thiosemicarbazone moiety. The crystal structure contains two intramolecular (N-H...O and N-H..
Dincer, M +4 more
openaire +2 more sources
Chemischer Informationsdienst. Organische Chemie, 1970
AbstractDie aus Benzoin (Ia), Benzoin‐acetat (Ib) und Benzoin‐benzoat (Ic) hergestellten Tosylhydrazone (IIa)‐(IIc) werden mit Alkali in Gegenwart von Protonen und in ihrer Abwesenheit, d.h. durch Methylat/Diglykoläthyläther oder Natrium/Glykol, gespalten und das jeweils erhaltene Mengenverhältnis an Desoxybenzoin (III) und Diphenyl‐acetylen (IV ...
T. IWADARE +4 more
openaire +1 more source
AbstractDie aus Benzoin (Ia), Benzoin‐acetat (Ib) und Benzoin‐benzoat (Ic) hergestellten Tosylhydrazone (IIa)‐(IIc) werden mit Alkali in Gegenwart von Protonen und in ihrer Abwesenheit, d.h. durch Methylat/Diglykoläthyläther oder Natrium/Glykol, gespalten und das jeweils erhaltene Mengenverhältnis an Desoxybenzoin (III) und Diphenyl‐acetylen (IV ...
T. IWADARE +4 more
openaire +1 more source
Canadian Journal of Chemistry, 1996
Treatment of tosylhydrazones of benzoin, benzoin acetate, and benzoin benzoate with alkali under protic and aprotic conditions yielded diphenyl acetylene together with desoxybenzoin. An increase in leaving aptitude of the adjacent group enhanced the formation of diphenyl acetylene.
Tsukasa Iwadare +2 more
openaire +1 more source
Treatment of tosylhydrazones of benzoin, benzoin acetate, and benzoin benzoate with alkali under protic and aprotic conditions yielded diphenyl acetylene together with desoxybenzoin. An increase in leaving aptitude of the adjacent group enhanced the formation of diphenyl acetylene.
Tsukasa Iwadare +2 more
openaire +1 more source
2014
The benzoin condensation consists of the addition of an acyl anion equivalent to a carbonyl derivative to afford an α-hydroxyketone. When the electrophilic partner is replaced by an imine, the analogous aza-benzoin reaction results in the formation of an α-aminoketone.
openaire +1 more source
The benzoin condensation consists of the addition of an acyl anion equivalent to a carbonyl derivative to afford an α-hydroxyketone. When the electrophilic partner is replaced by an imine, the analogous aza-benzoin reaction results in the formation of an α-aminoketone.
openaire +1 more source
Decomposition of tosylhydrazones of benzoin, benzoin acetate and benzoin benzoate with alkali
Tetrahedron Letters, 1969Tsukasa Iwadare +4 more
openaire +1 more source
Liquid Benzoin for Benzoinating Lard
The American Journal of the Medical Sciences, 1898openaire +1 more source

