Preparation of new layered double hydroxides exchanged with diisopropylamide for C-C bond forming reactions

The present invention relates to preparation of layered double hydroxides exchanged with diisopropylamide (LDH-diisopropylamide) useful as recyclable catalysts for preparing aldols/ , -unsaturated nitriles/ , -unsaturated esters/transesterified products/ -nitroalkanols/Michael adducts and epoxides. More particularly the present invention relates to preparation of layered double hydroxides exchanged with diisopropylamide of the formula [M and/or M M (OH) ][NCH(CH ) ] .zH O wherein M is a monovalent cation (Li , Na , K , Rb or Cs ), M is a divalent cation (Mg , Mn Fe , Co , Ni , Cu , Zn or Ca ); M is a trivalent ion (Al , Cr , Mn , Fe , Co , Ni , or La ); x has a value ranging between 0.10 to 0.50 and more preferably 0.20 to 0.33; z is an integer whose values depends on the ingredients and reactions conditions used and methods of preparation and use thereof. The LDH-diisopropylamides of this invention are recyclable catalysts for preparing aldols/ , -unsaturated nitriles/ , -unsaturated esters/transesterified products/ -nitroalkanols/Michael adducts and epoxides. The present invention relates to design and preparation of LDH-diisopropylamide through simple exchange process for the first time and its use in catalytic amounts for preparing aldols/ , -unsaturated nitriles/ , -unsaturated esters/transesterified products/ -nitroalkanols/Michael adducts and epoxide, resulting in higher yields.