The process 1, 2, 3 or 4 wherein in the preparation of the reaction product from the intermediate product and the nucleophilic reagent, the amount of the nucleophilic reagent is not more than 1.0 mol per mol of {TAIL ~ the Si H group} in the intermediate reaction product and at least 0.5 mol per mol of Mg in {HEAD ~ the intermediate reaction product} 
The process 1 , 2 , 3 or 4 wherein in the preparation of the reaction product from the intermediate product and the nucleophilic reagent , the amount of the nucleophilic reagent is not more than 1.0 mol per mol of { TAIL ~ the Si H group } in the intermediate reaction product and at least 0.5 mol per mol of Mg in { HEAD ~ the intermediate reaction product }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD