CAS: 5490-92-6; (9H-Xanthen-9-yl)Methanol

上下游产品

xanthene-9-carboxylic acid 9H-xanthene-9-carboxylic acid methyl ester benzoic acid xanthen-9-ylmethyl ester xanthene 9-iodomethyl-9H-xanthene 9-xanthylmethyl p-nitrophenylcarbonate

📜占吨-9-甲酸甲酯置于lithium Aluminium Tetrahydride,乙醚体系中,化学反应生成 9H-氧杂蒽-9-甲醇
参考文献:Studies In The Wagner-meerwein Rearrangement. Part Ii
标题:Studies In The Wagner-meerwein Rearrangement. Part Ii
摘要:Dibenz[b,F]Oxepin及其10-甲基衍生物已通过合适的苯并二氧杂环衍生物的环扩张制备.2-氟菲是由2-氟芴合成的.
DOI:10.1139/v57-147

专利信息

专利号:US-5101059-A
优先权日:1989-12-05
标 题 :Amino acid protecting groups
发明人：CARPINO LOUIS A; WU AN-CHUU
权利人:RES CORP TECHNOLOGIES INC
摘要:This invention relates to compounds of the formula a compound of the formula ##STR1## wherein X is O, CR 7 R 8 , S or NR 9 wherein R 7 and R 8 are independently hydrogen, or lower alkyl, and R 9 is lower alkyl; n n is 0 or 1; n R 1 and R 2 are independently hydrogen, lower alkyl, monoorganosilyl, diorganosilyl, triorganosilyl, halogen, aryl, or nitro; n R 3 is hydrogen, lower alkyl, monoorganosilyl, diorganosilyl, triorganosilyl, halogen, 9-fluorenylalkyl, cycloalkyl, aryl or aralkyl; n R 4 and R 5 are independently hydrogen, lower alkyl, or aryl or one of R 4 and R 5 is 9-fluorenyl; n R 6 is H or COZ wherein Z is an amino acid, a peptide residue or a leaving group; and n with the provisos that when n is 0 and R 3 is hydrogen, R 1 and R 2 are not hydrogen, halogen or nitro; that when n is 0 and R 3 is lower alkyl, R 1 and R 2 are not hydrogen; and that when X is O or CR 7 R 8 wherein R 7 and R 8 are H, that R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 are not all simultaneously H. The compounds of the present invention are useful in peptide synthesis as blocking or protecting groups for reactive groups. The present invention is also directed to a method of protecting a reactive group of an organic molecule during a reaction which modifies a portion of the molecule other than the protected group.

专利号:CN-119390724-A
优先权日:2024-09-19
标 题 :Synthesis method of phosphorous acid diester compound