公开(公告)号：US5817838A

公开(公告)日：1998-10-06

申请号：US946844

申请日：1997-10-08

申请人： Hansjorg Grundler ,  Hans-Jurgen Hansen

发明人： Hansjorg Grundler ,  Hans-Jurgen Hansen

IPC分类号： B01J31/02 ,  C07B61/00 ,  C07D317/36 ,  C07D317/72 ,  C07D317/12 ,  C07D317/14

CPC分类号： C07D317/72 ,  C07D317/36

摘要： A process for the manufacture of 4,4-disubstituted 5-methylene-1,3-dioxolan-2-ones ("cyclocarbonates") of the formula: ##STR1## wherein R.sup.1 and R.sup.2 each independently signify a saturated or olefinically-unsaturated aliphatic group or an aromatic group, or R.sup.1 and R.sup.2 together form tetra- or pentamethylene, by reacting a corresponding 3,3-disubstituted prop-1-yn-3-ol of the formula HC.tbd.C--C(R.sup.1)(R.sup.2)--OH (II) with carbon dioxide in the presence of a quaternary ammonium or phosphonium salt as the catalyst comprises using a silver salt as a further catalyst. An alkali metal or quaternary ammonium or phosphonium salt of a carboxylic acid can also be used to increase the catalytic performance of the silver salt catalyst. Moreover, the addition of triphenylphosphine serves to accelerate the reaction to some extent. The silver salts catalyze this process significantly better than the previously utilized copper salts. Advantageously, the process uses much smaller amounts of catalyst, significantly shortens reaction times, and mandates less drastic reaction conditions. Cyclocarbonates produced by this process are valuable intermediates for the production of polymerizates and other useful substances, such as dyestuffs and carotenoids.

摘要翻译： 制备下式的4,4-二取代的5-亚甲基-1,3-二氧戊环-2-酮（“环状碳酸酯”）的方法，其中R 1和R 2各自独立地表示饱和或不饱和的 脂族基团或芳族基团，或者R 1和R 2一起形成四或五亚甲基，通过使式HCB 3 CC（R 1）（R 2）-OH的相应的3,3-二取代的丙-1-炔-3-醇 （II）与作为催化剂的季铵盐或鏻盐存在下的二氧化碳包括使用银盐作为另外的催化剂。 也可以使用羧酸的碱金属或季铵或鏻盐来提高银盐催化剂的催化性能。 此外，加入三苯基膦可以在一定程度上加速反应。 银盐催化该方法显着优于先前使用的铜盐。 有利地，该方法使用少量的催化剂，显着缩短反应时间，并且要求较不剧烈的反应条件。 通过该方法生产的环碳酸酯是生产聚合物和其它有用物质如染料和类胡萝卜素的有价值的中间体。

公开(公告)号：US5648550A

公开(公告)日：1997-07-15

申请号：US567818

申请日：1995-12-06

申请人： Andreas Brungger ,  Hansjorg Grundler ,  Werner Simon

发明人： Andreas Brungger ,  Hansjorg Grundler ,  Werner Simon

IPC分类号： A23K1/16 ,  A23L1/275 ,  C07C45/59 ,  C07C45/68 ,  C07C49/24 ,  C07C49/258 ,  C07C49/743 ,  C07C403/16 ,  C07C45/45

CPC分类号： C07C403/16 ,  A23K20/179 ,  A23L5/44 ,  C07C45/59 ,  C07C49/24 ,  C07B2200/09 ,  C07C2101/16

摘要： A novel process for the manufacture of .beta.-keto alcohols from aldehydes comprising reacting a conjugated polyene aldehyde under basic conditions with a cyclocarbonate or derivative thereof. Certain carotenoid products of this process are novel compounds and are also an object of the present invention. The products, which for the most part belong to the carotenoid field, find corresponding use, for example, as colorants or pigments for foodstuffs, egg yolk, integuments and/or subcutaneous fat of poultry and flesh and/or integuments of fish and crustaceans.

摘要翻译： 一种用于从醛制造β-酮醇的新方法，包括在碱性条件下使共轭多烯醛与环碳酸酯或其衍生物反应。 该方法的某些类胡萝卜素产物是新化合物，也是本发明的目的。 大部分属于类胡萝卜素领域的产品可以找到相应的用途，例如作为用于食品，蛋黄，皮肤和/或家禽肉皮和/或皮肤和/或皮肤和皮肤外壳的皮肤脂肪的着色剂或颜料。