NOVELTY - Amide compound is manufactured by flow-through type reaction process by reacting allyl alcohol and acetal at high temperature/high pressure conditions ( greater than or equal to 200 degrees C and greater than or equal to 0.1 MPa) in a microreactor to obtain intermediate body gamma , delta -unsaturated amide compound. Even if there is no catalyst, by controlling temperature and pressure, synthesis is performed efficiently and selectively in a short time.    USE - Manufacturing method of amide compound for foodstuff and pharmaceutical material.    ADVANTAGE - The process is rapid and continuous, has high yield and selectivity, environmental impact is reduced, and safe.    DETAILED DESCRIPTION - Amide compound is manufactured by flow-through type reaction process by reacting allyl alcohol of formula R5-C(R4)=C(R3)-C(R1)(R2)-XH (1) and acetal of formula Me-C(OR6)(OR7)-N(R8)R9 (2) at high temperature/high pressure conditions ( greater than or equal to 200 degrees C and greater than or equal to 0.1 MPa) in a microreactor to obtain intermediate body gamma , delta -unsaturated amide compound of formula R8-N(R9)-C(=X)-CH2-C(R4)(R5)-C(R3)=C(R1)(R2) (3). Even if there is no catalyst, by controlling temperature and pressure, synthesis is performed efficiently and selectively in a short time.    X=O, S or N;    R1-R5=H, alkyl, alkenyl, alkynyl, cycloalkyl, or aryl; or    R1-R5=a ring, and    R6-R9=H or alkyl, or    R6-R9=a ring.    INDEPENDENT CLAIMS are included for:    (1) simple continuous abstraction method of product which involves separating oil and water after reaction, decanting water to recycled, and recovering product from oil layer; and    (2) synthesis apparatus comprising syringe pump which feed liquid consists of allyl alcohol as starting material, acetal, and predetermined solvent at a predetermined flow rate, microreactor consists of 1st micromixer and 2nd micromixer which heat and rapidly mix the solution to a predetermined high temperature and pressure, separately, and cooling unit for cooling the reaction liquid.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the synthesis apparatus.