Process for preparing cyclic organosiloxanes

Claim 1

A PROCESS FOR THE PRODUCTION OF CYCLIC ORGANOSILOXANES OF SPECIFIC DESIRED COMPOSITION HAVING MIXED ORGANOSUBSTITUENTS WHICH COMPRISES REACTING IN THE PRESENCE OF AN INERT SOLVENT (1) AN ORGANOSILICON DIOL COMPOUND SELECTED FROM THE CLASS CONSISTING OF SILOXANE COMPOUNDS HAVING THE FORMULA HO(R2SIO)NH AND SILANE COMPOUNDS HAVING THE FORMULA RA1RB2SI(OH)2 WHEREIN R, R1 AND R2 ARE SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBYL RADICALS CONNECTED TO SILICON THROUGH A CARBON-SILICON BOND AND MONOVALENT SUBSTITUTED HYDROCARBYL RADICALS CONTAINING SUBSTITUENTS FREE OF ACTIVE HYDROGEN, SAID MONOVALENT SUBSTITUTED HYDROCARBYL RADICALS CONNECTED TO SILICON THROUGH A CARBON-SILICON BOND AND HAVING THE SUBSTITUENTS LOCATED AT LEAST TWO CARBON ATOMS FROM THE SILICON ATOMS SAID SUBSTITUENTS BEING SELECTED FROM THE CLASS CONSISTING OF ALKYL, CYANO AND NITRO GROUPS AND WHEREIN R1 AND R2 CAN BE THE SAME OR DIFFERENT RADICALS BUT AT LEAST ONE R1 OR 2 RADICAL IS DIFFERENT FROM R, A IS AN INTEGER HAVING A VALUE FROM 0 TO 2 INCLUSIVE, B IS AN INTEGER HAVING A VALUE FROM 0 TO 2 INCLUSIVE, THE SUM OF A+B IS 2, AND N IS AN INTEGER HAVING A VALUE FROM 2 TO 4 INCLUSIVE WITH (2) AN ORGANOSILICON COMPOUND SELECTED FROM THE CLASS CONSISTING OF SILOXANE COMPOUNDS HAVING THE FORMULA X(R2SIO)MSIR2X AND SILANE COMPOUNDS HAVING THE FORMULA RA1RB2SIX2 WHEREIN R, R1, R2, A AND B ARE THE SAME AS DEFINED ABOVE, X IS A CHLORO RADICAL, THE SUM OF A+B IS 2 AND M IS AN INTEGER HAVING A VALUE FROM 1 TO 3 INCLUSVIE, WHEREIN ONE OF THE REACTANTS MUST BE A SILOXANE AND THE OTHER REACTANT MUST BE A SILANE, AND RECOVERING THE DESIRED CYCLIC ORGANOSILOXANE PRODUCT.