公开(公告)号：US06548700B2

公开(公告)日：2003-04-15

申请号：US09905359

申请日：2001-07-13

申请人： Wolfgang Döring ,  Jürgen Stohrer

发明人： Wolfgang Döring ,  Jürgen Stohrer

IPC分类号： C07C32300

CPC分类号： C07C319/28 ,  C07C323/58

摘要： A process for precipitating cystine from a solution in sulfuric acid, includes forming a mixture of a solution of cystine in aqueous sulfuric acid and of an aqueous solution of a base by simultaneous metering the cystine solution and the aqueous base solution into a mixing container. The metering takes place in such a way that the mixture in the container has a pH between 1.0 and 7.0 and a temperature between 30° C. and the boiling point of the mixture.

公开(公告)号：US07560550B2

公开(公告)日：2009-07-14

申请号：US10595067

申请日：2004-07-22

申请人： Wolfgang Döring ,  Hermann Petersen

发明人： Wolfgang Döring ,  Hermann Petersen

IPC分类号： C07F7/18 ,  C07D473/16

CPC分类号： C07D473/00 ,  C07D473/16

摘要： Glycosylation of 2,6-diaminopurines or silyl derivatives thereof with a compound of the structure is facilitated by the presence of an optionally silylated 1,3-dicarbonyl compound during glycosylation. Byproducts are minimized, while stereoselectivity may be altered by choice of Lewis acid and other reaction condictions.

摘要翻译： 通过在糖基化期间存在任选的甲硅烷基化的1,3-二羰基化合物，促进了具有该结构的化合物的2,6-二氨基嘌呤或其甲硅烷基衍生物的糖基化。 副产物被最小化，而立体选择性可以通过选择路易斯酸和其他反应条件而改变。

公开(公告)号：US06458330B1

公开(公告)日：2002-10-01

申请号：US09738314

申请日：2000-12-18

申请人： Panayotis Cocolios ,  François Coeuret ,  Wolfgang Döring ,  Franck Förster ,  Jean-Louis Gelot ,  Bernd Martens ,  Stéphane Melen ,  Eckhard Prinz ,  Jean-Yves Thonnelier ,  Alain Villermet

发明人： Panayotis Cocolios ,  François Coeuret ,  Wolfgang Döring ,  Franck Förster ,  Jean-Louis Gelot ,  Bernd Martens ,  Stéphane Melen ,  Eckhard Prinz ,  Jean-Yves Thonnelier ,  Alain Villermet

IPC分类号： B01J1908

CPC分类号： C23C16/45519 ,  C23C16/4412 ,  C23C16/455 ,  C23C16/45563 ,  C23C16/545 ,  G05D7/0676

摘要： Optimization of an installation in which an operation is performed that requires control over the atmosphere inside a chamber (3), the operation being performed in the presence of a gaseous mixture capable of giving off emissions, the optimization being obtained by the presence of inlet (5) and outlet (8) devices external to the chamber to oppose the ingress of air into the chamber and the exit of gaseous emissions; and of an extraction device (4) comprising means (42) for regulating the flow rate to maintain an approximately zero pressure differential between the inside and the outside of the chamber.

摘要翻译： 优化其中进行操作的装置，其需要控制室（3）内的大气，该操作是在存在可释放排放物的气体混合物的情况下进行的，优化是通过入口（存在 5）和出口（8）设备外部的装置，以反对空气进入室和气体排放物的出口; 以及包括用于调节流速以在腔室的内部和外部之间保持近似零压力差的装置（42）的提取装置（4）。

公开(公告)号：US06372912B1

公开(公告)日：2002-04-16

申请号：US09543634

申请日：2000-04-05

申请人： Wolfgang Döring ,  Günther Karl Staudinger

发明人： Wolfgang Döring ,  Günther Karl Staudinger

IPC分类号： C07D27704

CPC分类号： C07C319/02 ,  C07C319/06 ,  C07D277/06 ,  C07C323/58

摘要： Process for the hydrolytic ring cleavage of thiazolidine derivatives to give 2-aminomercaptan derivatives and carbonyl compounds, which comprises bringing an aqueous solution of the thiazolidine derivative into contact with an acidic cation exchanger in the H+ form, giving a solution L1 which contains the carbonyl compound and eluting the cation exchanger with a suitable eluent, giving a solution L2 which contains the 2-aminomercaptan derivative.

摘要翻译： 用于水解环裂解噻唑烷衍生物的方法得到2-氨基哌啶衍生物和羰基化合物，其包括将噻唑烷衍生物的水溶液与H +形式的酸性阳离子交换剂接触，得到含有羰基化合物的溶液L1和 该阳离子交换剂具有合适的洗脱液，得到含有2-氨基硫醇衍生物的溶液L2。