srinivasa rao tirumala setty

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Questions related from srinivasa rao tirumala setty

How can I convert bromo to isopropyl on pyrazole 4th position? Can anyone suggest ?

I tried suziki coupling with isopropyl boronic acid and negishi coupling with isopropyl zinc bromide.sm is major

10 October 2015 3,682 4 View

How to synthesize indazole 3-boronic acid or ester from 3-bromo or 3-iodo indazole?can u give any suggestions

I alredy tried with thp protected 3-indazole iodo and bromo compound but idid not get desired product with Koac and pd catalyst.most of the cases i got dimer and sm remained

08 August 2012 846 9 View

How to remove DIPEA trapped in the compound .I tried with water but compound also water soluble.Dipea comes with compound.

my compound contains Free amine and amide

02 February 2012 5,112 8 View