From: ramesh kumbham (kumbham5378$##$gmail.com)
Date: Sun Oct 25 2009 - 12:35:04 EDT
Hi dear ,
You prepare LDA at -78 C and maintain 45 min at -78c then add CpZrCl3 also
at -78 slowly then maintain 2hr at the same and
raise to RT then check.....
Ramesh.kumbham
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> 1. CYCLOPENTADIENE (Kishore Babu Ch)
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> Message: 1
> Date: Fri, 23 Oct 2009 16:31:01 +0530 (IST)
> From: Kishore Babu Ch <kbchilukuri$##$yahoo.com>
> Subject: ORGLIST: CYCLOPENTADIENE
> To: everybody$##$orglist.net
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> HI EVERY BODY,
> ?
> any body suggest that condensation procedure of cyclopentadiene zirconium
> tri chloride with dimethyl amine we required CpZr (NMe)3 product,if any
> information about this molecule please give me immediate reply,i try CpZrCl3
> with lithium dimethyl amine(3 Eq) but the reaction not move ,i prepare LDA
> at below -30 C and add CpZrCl3 compound at below -20C? and further stir at
> room temperature for 24 hours, but the reaction not move,
> ?
> ?
> thanks/regards,
> ?
> chk
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