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23 条记录 (耗时 0.016 秒)

    Process for transforming an aldehyde into an alkene
    5.
    发明授权
    Process for transforming an aldehyde into an alkene 失效
    将醛转化为烯烃的方法

    公开(公告)号：US4501910A

    公开(公告)日：1985-02-26

    申请号：US434048

    申请日：1982-10-12

    申请人： Michel Delmas ,  Antoine Gaset ,  Yves le Bigot

    发明人： Michel Delmas ,  Antoine Gaset ,  Yves le Bigot

    IPC分类号： C07C1/34 ,  C07C37/20 ,  C07C41/30 ,  C07C43/23 ,  C07D307/36 ,  C07D307/54 ,  C07D307/28

    CPC分类号： C07D307/54 ,  C07C1/34 ,  C07C37/20 ,  C07C41/30 ,  C07D307/36 ,  C07B2200/09

    摘要： The invention concerns a process transforming an aldehyde into a corresponding alkene, of the type wherein the aldehyde is placed in the presence of a phosphoric reagent and a base in an organic solvent.The process consists in using an alcohol as the solvent and as a base a mineral base which in an aqueous medium evinces a basic strength equal to or less than that of the hydroxide ion, or a strongly basic organic base of the amine family, and in limiting the hydration rate of the reaction medium to a value at most of 10 moles of water per mole of aldehyde.

    摘要翻译： 本发明涉及将醛转化为相应的烯烃的方法，其中醛在磷酸试剂和碱存在下置于有机溶剂中。 该方法包括使用醇作为溶剂和作为碱的矿物碱，其在水性介质中表现出等于或小于氢离子的碱性强度或胺族的强碱性有机碱，并且在 将反应介质的水合速率限制为每摩尔醛至多10摩尔水的值。

    Process for the production of an aromatic product having the odor and taste of black truffles, product and aromatic body obtained
    6.
    发明授权
    Process for the production of an aromatic product having the odor and taste of black truffles, product and aromatic body obtained 失效
    生产具有黑松露，产品和芳香体的气味和味道的芳香族产品的制备方法

    公开(公告)号：US4906487A

    公开(公告)日：1990-03-06

    申请号：US77276

    申请日：1987-07-24

    申请人： Michel Delmas ,  Antoine Gaset ,  Charles Montant ,  Pierre-Jean Pebeyre ,  Thierry Talou

    发明人： Michel Delmas ,  Antoine Gaset ,  Charles Montant ,  Pierre-Jean Pebeyre ,  Thierry Talou

    IPC分类号： A23L27/00 ,  A23L27/29

    CPC分类号： A23L27/29

    摘要： A process for the production of an aromatic product having the aroma and taste of black truffles (tuber melanosporum) comprising combining dimethylsulfide and methyl-2 butanal, and optionally adding one of more compounds selected from the group consisting of acetaldehyde, methyl-2 propanal, butanone-2, methyl-2 propanol and methyl-2 butanol; the product may be enhanced even further by the addition of one of more of the compounds selected from the group consisting of propanal, anisol, acetone, propanol-1, butanol-2 and ethanol; the aromatic product may also be diluted in a food grade solvent such as a food oil.

    摘要翻译： 一种生产具有黑松露（块状黑melan孢子）香气和味道的芳香族产品的方法，包括组合二甲基硫醚和甲基-2丁醛，以及任选地加入一种选自乙醛，甲基-2-丙醛， 丁酮-2，甲基-2-丙醇和甲基-2-丁醇; 可以通过加入选自丙醛，茴香醚，丙酮，丙醇-1，丁醇-2和乙醇的更多的化合物之一来进一步增强产物。 芳族产物也可以在食品级溶剂如食用油中稀释。

    Process for manufacturing 5-hydroxymethylfurfural
    7.
    发明授权
    Process for manufacturing 5-hydroxymethylfurfural 失效
    制备5-羟甲基糠醛的方法

    公开(公告)号：US4590283A

    公开(公告)日：1986-05-20

    申请号：US650637

    申请日：1984-09-14

    申请人： Antoine Gaset ,  Luc Rigal ,  Gilles Paillassa ,  Jean-Paul Salome ,  Guy Fleche

    发明人： Antoine Gaset ,  Luc Rigal ,  Gilles Paillassa ,  Jean-Paul Salome ,  Guy Fleche

    IPC分类号： C07D307/46

    CPC分类号： C07D307/46

    摘要： The invention relates to a process for manufacturing 5-hydroxymethylfurfural consisting of bringing a hexose into contact with a catalytic support in the form of a solution of said hexose in a strongly polar aprotic solvent, particularly dimethylsulfoxide, the 5-hydroxymethylfurfural formed being extracted by means of a solvent for the latter also brought into contact with the catalytic support. All of the operations are carried out preferably continuously, particularly by the counter-current principle.

    摘要翻译： 本发明涉及一种制备5-羟甲基糠醛的方法，其包括使己糖与所述己糖在强极性非质子溶剂特别是二甲亚砜中的溶液形式的催化载体接触，所形成的5-羟甲基糠醛通过手段提取 的后者的溶剂也与催化载体接触。 所有的操作优选地连续进行，特别是通过逆流原理进行。

    Process for preparing esters of furan by a transesterification reaction
    8.
    发明授权
    Process for preparing esters of furan by a transesterification reaction 失效
    通过酯交换反应制备呋喃酯的方法

    公开(公告)号：US4562273A

    公开(公告)日：1985-12-31

    申请号：US626112

    申请日：1984-06-29

    申请人： Yves Le Bigot ,  Paul Audoye ,  Michel Delmas ,  Antoine Gaset

    发明人： Yves Le Bigot ,  Paul Audoye ,  Michel Delmas ,  Antoine Gaset

    IPC分类号： C07D307/12 ,  C07D307/42 ,  C07D307/68

    CPC分类号： C07D307/42 ,  C07D307/12 ,  C07D307/68

    摘要： A process for the preparation of an ester of furan of the formula ##STR1## or ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each hydrogen or hydrocarbon radicals containing at least one heteroatom comprising subjecting an ester of the formula ##STR3## wherein R.sub.5 is hydrogen or a hydrocarbon radical containing at least one heteroatom to a transesterification reaction with a furan alcohol of the formula ##STR4## in the presence of a catalyst comprising an alkaline carbonate other than lithium carbonate at a temperature of 0.degree. C. to 90.degree. C.

    摘要翻译： 其中R 1，R 2，R 3和R 4各自为氢或含有至少一个杂原子的烃基，所述方法包括使下式的酯进行酯化，其中式 在包含碳酸锂以外的碱性碳酸酯的催化剂存在下，在0℃的温度下，R 5是氢或含有至少一个杂原子的烃基与与式“IMAGE”或“IMAGE”的呋喃醇进行酯交换反应 C.至90℃

    Process for converting an aldehyde into an alkene, in particular furfural into furfurylidenes
    9.
    发明授权
    Process for converting an aldehyde into an alkene, in particular furfural into furfurylidenes 失效
    将醛转化为烯烃，特别是糠醛转化成糠酰烯的方法

    公开(公告)号：US4346040A

    公开(公告)日：1982-08-24

    申请号：US285488

    申请日：1981-07-21

    申请人： Michel Delmas ,  Antoine Gaset ,  Yves Le Bigot

    发明人： Michel Delmas ,  Antoine Gaset ,  Yves Le Bigot

    IPC分类号： C07C1/34 ,  C07C41/30 ,  C07C201/12 ,  C07C205/06 ,  C07D307/36 ,  C07D307/28

    CPC分类号： C07D307/36 ,  C07C1/34 ,  C07C201/12 ,  C07C41/30

    摘要： The invention relates to a process for converting an aldehyde into a corresponding alkene and of the type wherein the aldehyde is placed in the presence of a phosphoric reagent and a base in solution in an organic aprotic solvent; the process comprising using a mineral base evincing in an aqueous medium a basic force less than or equal to that of the hydroxide ion or a strongly basic organic base of the nitrogen compounds family and adjusting the hydration rate of the reaction medium in such a manner that there are about 0.5 to 5 moles of water per mole of aldehyde.

    摘要翻译： 本发明涉及一种将醛转化为相应的烯烃的方法，其中醛在磷酸试剂和碱的存在下在溶液中置于有机非质子溶剂中; 该方法包括使用在水性介质中显示的矿物碱，其碱性力小于或等于氮化合物族的氢氧根离子或强碱性有机碱的碱性力，并以如下方式调节反应介质的水合速率： 每摩尔醛具有约0.5至5摩尔的水。