Efficient synthesis of 2,3-dihydro-1H-pyrazoles via a highly selective Pd(0)-catalyzed coupling-cyclization reaction of terminal 2-substituted 2,3-allenyl hydrazines with aryl iodides.
2,3-dihydro-1H-pyrazoles were highly selectively synthesized via the Pd(0)-catalyzed coupling-cyclization reaction of 4-non-substituted 2-substituted 2,3-allenyl hydrazines with aryl iodides in moderate to good yields.
Cheng
Xin
X
State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai, 200032, PR China.
Ma
Shengming
S
D002384:Catalysis; D003500:Cyclization; D006834:Hydrazines / Q000737:chemistry*; D007454:Iodides / Q000737:chemistry*; D008958:Models, Molecular; D010165:Palladium / Q000737:chemistry*; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000737:chemistry
D006834:Hydrazines; D007454:Iodides; D011720:Pyrazoles; D010165:Palladium