Process for making polymercaptans
    8.
    发明授权
    Process for making polymercaptans 失效
    制造聚合物的方法

    公开(公告)号:US3849443A

    公开(公告)日:1974-11-19

    申请号:US19792271

    申请日:1971-11-11

    Inventor: LOUTHAN R

    CPC classification number: C07C325/00 C08G59/66

    Abstract: 1. A PROCESS FOR PRODUCING A POLYMERCAPTAN WHICH COMPRISES REACTING AN ALPHA, BETA-UNSATURATED ALDEHYDE COMPOUND WITH HYDROGEN SULFIDE IN SOLUTION IN AN ALCOHOL BOILING BELOW ABOUT 100* C. CONTAINING SILFUR AND A NITROGENOUS BASE, WHEREIN THE ALPHA, BETA-UNSATURATED ALDEHYDE COMPOUND IS AT LEAST ONE SELCTED FROM THE GROUP OF COMPOUNDS HAVING THE FORMULA:

    (R)2-C=C(-R)-CO-H

    WHEREIN EACH R SUBSTITUTED IS SELECTED FROM HYDROGEN, ALKYL OR ARYL AND WHEREIN EACH R SUBSTITUTED IS SO SELECTED THAT THE COMPOUND CONTAINS 4-18 CARBON ATOMS, WHEREIN THE TEMPERATURE IS IN THE APPROXIMATE RANGE 20-150* C., THE MOLAR RATIO OF HYDROGEN SULFIDE TO THE ALDEHYDR REACTANT IS IN THE APPROXIMATE RANGE OF FROM ABOUT 2:1 TO ABOUT 10:1, THE NITROGENOUS BASE IS AMMONIA IN THE APPROXIMATE RANGE OF 0.1 TO 2.5 GRAMS AND THE AMOUNT OF SULFUR IS IN APPROXIMATE RANGE OF FROM ABOUT .5 TO ABOUT 4 GRAMS, PER MOLE OF THE ALDEHYDE REACTANT AND RECOVERING A POLYMERCAPTAN POSSESSING A PLURALITY OF MERCAPTO GROUPS.

    Thioalkanal-s-oxides
    10.
    发明授权
    Thioalkanal-s-oxides 失效
    硫代硫氧化物

    公开(公告)号:US3686323A

    公开(公告)日:1972-08-22

    申请号:US3686323D

    申请日:1970-02-24

    CPC classification number: C07C381/04 A23L27/2022 C07C325/00

    Abstract: This invention relates to novel thio-alkanal-S-oxides of the formula R=S=O wherein R is a straight-chain alkylidene group having from two to six carbon atoms. These novel compounds are useful to alter the flavor of consumable products. They may be prepared by reacting an alkyl sulfinyl chloride and a lower tertiary amine at a temperature below about -50* C.

    Abstract translation: 本发明涉及式R = S = O的新的硫代 - 链烷醛S-氧化物,其中R是具有2-6个碳原子的直链亚烷基。 这些新型化合物可用于改变消费品的味道。 它们可以通过在低于约-50℃的温度下使烷基亚磺酰氯和低级叔胺反应来制备。

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