Preparation of Heteroaryl Phenylmethanes and a 13C and 15N NMR Spectroscopic Study of their Conjugate Carbanions. Rotational Isomerism and Charge Maps of the Anions and Ranking of the Charge Demands of the Heterocycles
2-Benzylpyridazine, 4-benzylpyrimidine, 2-benzylpyrimidine and 2-benzylpyrazine, (5-8) have been prepared in order to study their 13C and 15N spectra and those of their conjugate carbanions (1-4).These systems are aza-homologues of the previously reported
Abbotto, Alessandro,Alanzo, Vito,Bradamante, Silvia,Pagani, Giorgio A.
p. 481 - 488
(2007/10/02)
REACTION OF METHOXY-N-HETEROAROMATICS WITH PHENYLACETONITRILE UNDER BASIC CONDITIONS
The monomethoxyl derivatives of various ?-electron deficient N-heteroaromatics reacted with phenylacetonitrile in tetrahydrofuran in the presence of sodium hydride to give α-phenyl-N-heteroareneacetonitriles in the yields ranging from 45 to 78percent.On the contrary, the reaction of these methoxyl derivatives with ethyl cyanoacetate or malononitrile under similar conditions was restricted within narrow limits.The synthesis of benzoyl-N-heteroaromatics by the air-oxidation of α-phenyl-N-hetroareneacetonitriles was described additionally.
Yamanaka, Hiroshi,Ohba, Setsuya
p. 895 - 909
(2007/10/02)
REACTIONS OF β-BROMO-N-HETEROAROMATICS WITH PHENYLACETONITRILE
The reaction of 3-bromopyridine with phenylacetonitrile in the presence of NaH in THF gave a simple substitution product, α-phenyl-3-pyridineacetonitrile, whereas the reaction of 5-bromopyrimidine with phenylacetonitrile under similar conditions gave a ring-transformation product, 2-amino-5-bromo-3-phenylpyridine. 3-Bromoquinoline and 4-bromoisoquinoline underwent the former type reaction, while 3-bromo- and 3-chloroisoquinolines were converted into 2-amino-3-phenyl-1-naphthalenecarbonitrile according to the latter type reaction.
Ohba, Setsuya,Sakamoto, Takao,Yamanaka, Hiroshi
p. 1301 - 1308
(2007/10/02)
More Articles about upstream products of 130532-95-5