FORMATION OF HETEROCYCLIC COMPOUNDS FROM REACTIONS OF DICOBALT OCTA(XYLYL ISOCYANIDE) WITH CHLOROACETONE OR METHYL MONOCHLOROACETATE

摘要

Reaction of xylyl isocyanide with chloroaretone in the presence of [Co2(XylNC)(8)] (Xyl = 2,6-Me(2)C(6)H(3)) gave the derivatives of azacyclopent-3-ene (CH3COCH3)(XylNC)(4) 1 and cobaltaazacyclobutane CoCl(CH3COCH)(XylNC)(5) 2. Similar reaction with methyl monochloroacetate gave the analog of 1 (CH(3)COOMe)(XylNC)(4) 4 and the 2,6-diaza-bicyclo[3,3,0]octa-1,7-diene derivative (CHCOOMe)(XylNC)(5) . C6H6 5 C6H6. Compounds 1 and 5 C6H6 Were confirmed by their X-ray analyses (1 monoclinic, space group Cc (No. 9), a = 10.241(3), b = 19.474(6), c = 16.955(8) Angstrom, beta = 103.42(3)degrees, V = 3289(2) Angstrom(3), Z = 4, and R = 0.043; 5 . C6H6 or thorhombic, space group Pbcn (No. 60), a = 21.642(5), b = 14.028(3), c = 30.449(8) Angstrom, V = 9244(7) Angstrom(3), Z = 8, and R = 0.087). A possible reaction route is discussed. [References: 20]