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    • 13. 发明申请
    • Bisbiphenylacylphosphine oxide and preparation method therefore
    • 二苯基酰基氧化膦及其制备方法
    • US20070173659A1
    • 2007-07-26
    • US11337441
    • 2006-01-24
    • Wen-Chiung SuChang-Chih LinChing-Shang Sheng
    • Wen-Chiung SuChang-Chih LinChing-Shang Sheng
    • C07F9/02
    • C07F9/657172
    • A bisbiphenylacylphosphine oxide of formula (I) and its preparation method are provided. The formula of —Ar— is First, 10-chloro-9,10-dihydro-9-oxa-10-phosphaphenanthrene (CDOP) is prepared by using 2-phenylphenol, and then is esterified to synthesize 6-methoxy-(6H)-dibenz[c,e][1,2]oxa-phosphorin (MDOP). Next, acid chloride compounds are added for performing the Arbuzov reaction to synthesize bisbiphenylacylphosphine oxide. CDOP is hydrolyzed to be derived into 9,10-dihydro-9-oxa-10-phosphaphen-anthrene-10-oxide (DOPO), and then DOPO reacts with arylaldehyde to form secondary alcohol. Therefore, bisbiphenylacylphosphine oxide is prepared by using secondary alcohol under oxidation. Also, under a coupling reaction, DOPO reacts with the acid chloride compounds by using a Lewis acid as a catalyst to prepare bisbiphenylacylphosphine oxide.
    • 提供式(I)的双联苯酰基氧化膦及其制备方法。 -Ar-的配方是通过使用2-苯基苯酚制备10-氯-9,10-二氢-9-氧杂-10-磷杂菲(CDOP),然后酯化合成6-甲氧基 - (6H) - 二苯并[c,e] [1,2]氧杂 - 磷杂(MDOP)。 接下来,加入酰氯化合物进行Arbuzov反应以合成双联苯基酰基氧化膦。 将CDOP水解成9,10-二氢-9-氧杂-10-磷杂蒽-10-氧化物(DOPO),然后DOPO与芳基醛反应形成仲醇。 因此,通过使用仲醇在氧化下制备双联苯基酰基氧化膦。 此外,在偶联反应中,DOPO通过使用路易斯酸作为催化剂与酰基氯化合物反应以制备双联苯基酰基氧化膦。
    • 18. 发明授权
    • Vise jaw
    • US11305403B2
    • 2022-04-19
    • US16554358
    • 2019-08-28
    • Chang-Yi LinChang-Chih Lin
    • Chang-Yi LinChang-Chih Lin
    • B25B1/24B25B1/02
    • A vise jaw is provided, including: a first jaw, including a slide groove and at least one locking portion, each locking portion including a receiving room, a threaded hole and a through hole, the receiving room, the threaded hole and the through hole respectively communicated with each other; a second jaw, having a slide protrusion slidably disposed within the slide groove, the slide protrusion having a lateral face facing the through hole; at least one fastening assembly, each fastening assembly including a screw member, an abutting member and at least one elastic member, the screw member screwed into the threaded hole, the abutting member adjustably disposed within the receiving room, the abutting member including a large diameter section and a small diameter section which are arranged along a first direction, the small diameter section disposed through the through hole and extending into the slide groove.