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Potassium-zinc induced synergic enhancement of the basicity of hexamethyldisilazide (HMDS) towards methylbenzene molecules

Clegg, W. and Forbes, G.C. and Kennedy, A.R. and Mulvey, R.E. and Liddle, S.T. (2003) Potassium-zinc induced synergic enhancement of the basicity of hexamethyldisilazide (HMDS) towards methylbenzene molecules. Chemical Communications (London), 2003 (3). pp. 406-407. ISSN 0009-241X

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Abstract

While neither KHMDS nor Zn(HMDS)(2) can unilaterally metallate toluene under the conditions studied, the bilateral base 'KZn(HMDS)(3)' can smoothly do so to produce the benzyl product [{KZn(HMDS)(2)(CH2Ph)}(infinity)], which exists in the crystal as an infinite spiral chain of benzyl (ambi-sigma, pi)-linked (KNZnN) rings.