DEVICE FOR CONTINUOUSLY PREPARING 2,6-DIHYDROXYBENZALDEHYDE

    公开(公告)号:US20220297080A1

    公开(公告)日:2022-09-22

    申请号:US17642194

    申请日:2019-09-12

    摘要: The present disclosure provides a device for continuously preparing 2,6-dihydroxybenzaldehyde and use thereof. The device includes a first continuous reaction unit for hydroxy protection reaction, a second continuous reaction unit for lithiation and hydroformylation, and a third continuous reaction unit for deprotection reaction that are connected in series. The third continuous reaction unit includes: a first columnar continuous reactor, connected to the second continuous reaction unit and used for deprotection of the lithiated hydroformylated product while performing liquid separation to obtain an organic phase containing 2,6-dihydroxybenzaldehyde and an aqueous phase. When the device is applied in the preparation of 2,6-dihydroxybenzaldehyde, reaction time is shortened and the intermediate purification treatment is no longer required. Therefore, compared with batch process, the present disclosure can greatly save equipment cost and post-processing cost, and greatly improve the production efficiency, more beneficial to the industrial scale-up production of 2,6-dihydroxybenzaldehyde.

    OMEGA-TRANSAMINASE OF R CONFIGURATION AND USES THEREOF
    10.
    发明申请
    OMEGA-TRANSAMINASE OF R CONFIGURATION AND USES THEREOF 审中-公开
    R配置的OMEGA-TRANSAMINASE及其用途

    公开(公告)号:US20170002338A1

    公开(公告)日:2017-01-05

    申请号:US15039736

    申请日:2014-10-29

    IPC分类号: C12N9/10 C12P13/00 C12P17/12

    摘要: An omega-transaminase of R-configuration is provided. The omega-transaminase of R-configuration has the amino acid sequence as shown in SEQ ID NO: 2, or has at least 80% identity to the amino acid sequence as shown in SEQ ID NO: 2, or has the amino acid sequence of proteins which have substituted, deleted or added one or more amino acids and have the activity of an omega-transaminase with a high stereoselectivity R-configuration catalytic activity; and does not have the amino acid sequence encoded by the nucleotide sequence as shown in SEQ ID NO: 4. The high stereoselectivity refers to the content of one of the stereoisomers being at least about 1.1 times that of the other. A use of the omega-transaminase of R-configuration is provided.

    摘要翻译: 提供R-构型的ω-转氨酶。 R构型的ω-转氨酶具有如SEQ ID NO:2所示的氨基酸序列,或与SEQ ID NO:2所示的氨基酸序列具有至少80%的同一性,或具有SEQ ID NO:2所示的氨基酸序列 具有取代,缺失或添加一个或多个氨基酸并且具有高立体选择性R构型催化活性的ω-转氨酶活性的蛋白质; 并且不具有由SEQ ID NO:4所示的核苷酸序列编码的氨基酸序列。高立体选择性是指立体异构体之一的含量为至少约1.1倍。 提供了R-构型的ω-转氨酶的用途。