59618-86-9Relevant academic research and scientific papers
ON THE MULTIPLICITY OF CARBENES CONJUGATED WITH PYRROLE AND FURAN MOIETIES: MOLECULAR ORBITAL CALCULATION AND REACTION OF 2-(1-METHYL)PYRROLYLMETHYLENE AND 2-FURYLMETHYLENE WITH CIS- AND TRANS-STILBENES
Saito, Katsuhiro,Ushida, Takahiro,Fushihara, Hiroshi,Yamashita, Yoshiro,Tanaka, Shoji,Takahashi, Kensuke
, p. 115 - 122 (2007/10/02)
The reaction of 2-(1-methyl)pyrrolylmethylene and 2-furylmethylene with cis- and trans-stilbenes proceeded in a stereospecific manner to give the corresponding cyclopropane derivatives to show that the multiplicities of these carbenes are singlet.The molecular orbital calculation showed that these carbenes are triplet in their ground state and nucleophilic both in singlet and triplet states.
THERMOLYSIS OF SODIUM SALTS OF TOSYLHYDRAZONES OF SOME HETEROCYCLIC ALDEHYDES IN THE PRESENCE OF SILVER CHROMATE: 1,3 NC MIGRATION OF TOSYL GROUP
Saito, Katsuhiro,Ishihara, Hiraku
, p. 1891 - 1898 (2007/10/02)
The thermal decompositions of sodium salts of tosylhydrazones of furfural, thiophene-2-aldehyde, 1-methylpyrrole-2-aldehyde, and pyridine-2-aldehyde in the presence of silver chromate gave 2-furyl(p-toluenesulfonyl)methane, thiophene-2-(p-toluenesulfonyl)methane, 1-methylpyrrole-2-(p-toluenesulfonyl)methane, and pyridine-2-(p-toluenesulfonyl)methane, respectively, via 1,3 NC migration of tosyl group.The same type of reactions with sodium salts of tosylhydrazones of thiophene-3-aldehyde, pyridine-3-aldehyde, and pyridine-4-aldehyde also afforded the corresponding p-toluenesulfonylmethanes but the yields were slightly lower comparing to the above cases.
