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Thiazol-2-carboxylic acid matrix-isolated, photolysis

The dihydrothiazol-2-ylidene (4) was generated by photolysis of matrix-isolated thiazol-2-carboxylic acid.12 Calculations suggested that the barrier to isomerization to thiazole is about 42.3 kcal mol 1 and that the carbene resembles the related imidazol-2-ylidene in structure. An ab initio study of hydroxyoxiranone predicted that the decarboxylation of the zwitterion (5) to form hydroxycarbene (6) would be favourable in vacuo but not in water.13 A theoretical study showed that dihalosulfenes (X2C=S02) are best viewed as dihalocarbenc-SO complexes with a carbon-sulfur bond order of approximately zero.14 hi a study directed at the elusive thionformic acid (7), tandem mass spectrometric methods were applied to isomeric ethyl thioformates.15 The results suggest that the radical cations generated have the carbene structure [(HS)C(OH)]+ ... [Pg.222]


See other pages where Thiazol-2-carboxylic acid matrix-isolated, photolysis is mentioned: [Pg.124]   
See also in sourсe #XX -- [ Pg.222 ]

See also in sourсe #XX -- [ Pg.222 ]

See also in sourсe #XX -- [ Pg.222 ]

See also in sourсe #XX -- [ Pg.97 , Pg.222 ]




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Matrix acidizing

Matrix isolation

Matrix, photolysis

Photolysis thiazol-2-carboxylic acid

Thiazol-2-carboxylic acid

Thiazole-4-carboxylic acid

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