HALOACETYLATED ENOL ETHERS. XVII.1* A CONVENIENT SYNTHESIS OF 5-TRICHLOROMETHYL-1,2-DIMETHYL- 1H-PYRAZOLIUM CHLORIDES
作者:Marcos Martins、Claudio Pereira、Adilson Sinhorin、Giovani Bastos、Nilo Zimmermann、Adriano Rosa、Helio Bonacorso、Nilo Zanatta
DOI:10.1081/scc-120002126
日期:——
ABSTRACT The one-pot synthesis of nine 5-trichloromethyl-1,2-dimethyl-1H-pyrazolium chlorides 2 from the cyclocondensation of 4-alkoxy-1,1,1-trichloro-3-alken-2-ones [CCl3C(O)C(R2)= C(R1)OR, where R1 = H, Me, Et, n-Pr, (CH2)5CO2Et, CH2Br, Ph, 4-Br-C6H4; R2 = H, Me; and R = Me, Et] with 1,2-dimethylhydrazine is reported. For Part 16, see Ref. [12].
摘要 通过 4-烷氧基-1,1,1-三氯-3-烯烃-2-酮 [CCl3C(O )C(R2)= C(R1)OR,其中 R1 = H、Me、Et、n-Pr、(CH2)5CO2Et、CH2Br、Ph、4-Br-C6H4;R2 = H,我;和 R = Me, Et] 与 1,2-二甲基肼报道。对于第 16 部分,请参阅参考资料。[12]。