메뉴 건너뛰기




Volumn 18, Issue 22, 1999, Pages 4598-4602

Synthesis of an Aluminatacyclopropene Derivative with an AlC2 Heterocycle and an Exocyclic AlR2 Substituent: Evidence for a Nonclassical Bonding Situation

Author keywords

[No Author keywords available]

Indexed keywords


EID: 0000009021     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om990438b     Document Type: Article
Times cited : (38)

References (86)
  • 2
    • 33745171768 scopus 로고
    • Hiller, W.; Klinkhammer, K.-W.; Uhl, W.; Wagner, J. Angew. Chem. 1991, 103, 182; Angew. Chem., Int. Ed. Engl. 1991, 30, 179.
    • (1991) Angew. Chem., Int. Ed. Engl. , vol.30 , pp. 179
  • 5
    • 33747578380 scopus 로고    scopus 로고
    • (b) Dohmeier, C.; Loos, D.; Schnöckel, H. Angew. Chem. 1996, 108, 141; Angew. Chem., Int. Ed. Engl. 1996, 35, 129.
    • (1996) Angew. Chem., Int. Ed. Engl. , vol.35 , pp. 129
  • 6
    • 0000493263 scopus 로고    scopus 로고
    • (a) Uhl, W.; Breher, F. Angew. Chem. 1999, 111, 1578; Angew. Chem., Int. Ed. Engl. 1999, 38, 1477. Aluminium atoms in borane or carbaborane clusters:
    • (1999) Angew. Chem. , vol.111 , pp. 1578
    • Uhl, W.1    Breher, F.2
  • 7
    • 0033577879 scopus 로고    scopus 로고
    • Aluminium atoms in borane or carbaborane clusters
    • (a) Uhl, W.; Breher, F. Angew. Chem. 1999, 111, 1578; Angew. Chem., Int. Ed. Engl. 1999, 38, 1477. Aluminium atoms in borane or carbaborane clusters:
    • (1999) Angew. Chem., Int. Ed. Engl. , vol.38 , pp. 1477
  • 13
    • 0000992157 scopus 로고    scopus 로고
    • Further compounds of this type were published later on: (a) Wiberg, N.; Amelunxen, K.; Nöth, H.; Schmidt, M.; Schwenk, H. Angew. Chem. 1996, 108, 110; Angew. Chem., Int. Ed. Engl. 1996, 35, 65. (b) Wiberg, N.; Amelunxen, K.; Blank, T.; Nöth, H.; Knizek, J. Organometallics 1998, 17, 5431. (c) Wehmschulte, R. J.; Ruhlandt-Senge, K.; Olmstead, M. M.; Hope, H.; Sturgeon, B. E.; Power, P. P. Inorg. Chem. 1993, 32, 2983. (d) He, X.; Bartlett, R. A.; Olmstead, M. M.; Ruhlandt- Senge, K.; Sturgeon, B. E.; Power, P. P. Angew. Chem. 1993, 105, 761; Angew. Chem., Int. Ed. Engl 1993, 32, 717. (e) Schluter, R. D.; Cowley, A. H.; Atwood, D. A.; Jones, R. A.; Bond, M. R.; Carrano, C. J. J. Am. Chem. Soc. 1993, 115, 2070. (f) Saxena, A. K.; Zhang, H.; Maguire, J. A.; Hosmane, N. S.; Cowley, A. H. Angew. Chem. 1995, 107, 378; Angew. Chem., Int. Ed. Engl. 1995, 34, 332.
    • (1996) Angew. Chem. , vol.108 , pp. 110
    • Wiberg, N.1    Amelunxen, K.2    Nöth, H.3    Schmidt, M.4    Schwenk, H.5
  • 14
    • 0002338708 scopus 로고    scopus 로고
    • Further compounds of this type were published later on: (a) Wiberg, N.; Amelunxen, K.; Nöth, H.; Schmidt, M.; Schwenk, H. Angew. Chem. 1996, 108, 110; Angew. Chem., Int. Ed. Engl. 1996, 35, 65. (b) Wiberg, N.; Amelunxen, K.; Blank, T.; Nöth, H.; Knizek, J. Organometallics 1998, 17, 5431. (c) Wehmschulte, R. J.; Ruhlandt-Senge, K.; Olmstead, M. M.; Hope, H.; Sturgeon, B. E.; Power, P. P. Inorg. Chem. 1993, 32, 2983. (d) He, X.; Bartlett, R. A.; Olmstead, M. M.; Ruhlandt- Senge, K.; Sturgeon, B. E.; Power, P. P. Angew. Chem. 1993, 105, 761; Angew. Chem., Int. Ed. Engl 1993, 32, 717. (e) Schluter, R. D.; Cowley, A. H.; Atwood, D. A.; Jones, R. A.; Bond, M. R.; Carrano, C. J. J. Am. Chem. Soc. 1993, 115, 2070. (f) Saxena, A. K.; Zhang, H.; Maguire, J. A.; Hosmane, N. S.; Cowley, A. H. Angew. Chem. 1995, 107, 378; Angew. Chem., Int. Ed. Engl. 1995, 34, 332.
    • (1996) Angew. Chem., Int. Ed. Engl. , vol.35 , pp. 65
  • 15
    • 0000589368 scopus 로고    scopus 로고
    • Further compounds of this type were published later on: (a) Wiberg, N.; Amelunxen, K.; Nöth, H.; Schmidt, M.; Schwenk, H. Angew. Chem. 1996, 108, 110; Angew. Chem., Int. Ed. Engl. 1996, 35, 65. (b) Wiberg, N.; Amelunxen, K.; Blank, T.; Nöth, H.; Knizek, J. Organometallics 1998, 17, 5431. (c) Wehmschulte, R. J.; Ruhlandt-Senge, K.; Olmstead, M. M.; Hope, H.; Sturgeon, B. E.; Power, P. P. Inorg. Chem. 1993, 32, 2983. (d) He, X.; Bartlett, R. A.; Olmstead, M. M.; Ruhlandt- Senge, K.; Sturgeon, B. E.; Power, P. P. Angew. Chem. 1993, 105, 761; Angew. Chem., Int. Ed. Engl 1993, 32, 717. (e) Schluter, R. D.; Cowley, A. H.; Atwood, D. A.; Jones, R. A.; Bond, M. R.; Carrano, C. J. J. Am. Chem. Soc. 1993, 115, 2070. (f) Saxena, A. K.; Zhang, H.; Maguire, J. A.; Hosmane, N. S.; Cowley, A. H. Angew. Chem. 1995, 107, 378; Angew. Chem., Int. Ed. Engl. 1995, 34, 332.
    • (1998) Organometallics , vol.17 , pp. 5431
    • Wiberg, N.1    Amelunxen, K.2    Blank, T.3    Nöth, H.4    Knizek, J.5
  • 16
    • 0000412317 scopus 로고
    • Further compounds of this type were published later on: (a) Wiberg, N.; Amelunxen, K.; Nöth, H.; Schmidt, M.; Schwenk, H. Angew. Chem. 1996, 108, 110; Angew. Chem., Int. Ed. Engl. 1996, 35, 65. (b) Wiberg, N.; Amelunxen, K.; Blank, T.; Nöth, H.; Knizek, J. Organometallics 1998, 17, 5431. (c) Wehmschulte, R. J.; Ruhlandt-Senge, K.; Olmstead, M. M.; Hope, H.; Sturgeon, B. E.; Power, P. P. Inorg. Chem. 1993, 32, 2983. (d) He, X.; Bartlett, R. A.; Olmstead, M. M.; Ruhlandt- Senge, K.; Sturgeon, B. E.; Power, P. P. Angew. Chem. 1993, 105, 761; Angew. Chem., Int. Ed. Engl 1993, 32, 717. (e) Schluter, R. D.; Cowley, A. H.; Atwood, D. A.; Jones, R. A.; Bond, M. R.; Carrano, C. J. J. Am. Chem. Soc. 1993, 115, 2070. (f) Saxena, A. K.; Zhang, H.; Maguire, J. A.; Hosmane, N. S.; Cowley, A. H. Angew. Chem. 1995, 107, 378; Angew. Chem., Int. Ed. Engl. 1995, 34, 332.
    • (1993) Inorg. Chem. , vol.32 , pp. 2983
    • Wehmschulte, R.J.1    Ruhlandt-Senge, K.2    Olmstead, M.M.3    Hope, H.4    Sturgeon, B.E.5    Power, P.P.6
  • 17
    • 0002109063 scopus 로고
    • Further compounds of this type were published later on: (a) Wiberg, N.; Amelunxen, K.; Nöth, H.; Schmidt, M.; Schwenk, H. Angew. Chem. 1996, 108, 110; Angew. Chem., Int. Ed. Engl. 1996, 35, 65. (b) Wiberg, N.; Amelunxen, K.; Blank, T.; Nöth, H.; Knizek, J. Organometallics 1998, 17, 5431. (c) Wehmschulte, R. J.; Ruhlandt-Senge, K.; Olmstead, M. M.; Hope, H.; Sturgeon, B. E.; Power, P. P. Inorg. Chem. 1993, 32, 2983. (d) He, X.; Bartlett, R. A.; Olmstead, M. M.; Ruhlandt-Senge, K.; Sturgeon, B. E.; Power, P. P. Angew. Chem. 1993, 105, 761; Angew. Chem., Int. Ed. Engl 1993, 32, 717. (e) Schluter, R. D.; Cowley, A. H.; Atwood, D. A.; Jones, R. A.; Bond, M. R.; Carrano, C. J. J. Am. Chem. Soc. 1993, 115, 2070. (f) Saxena, A. K.; Zhang, H.; Maguire, J. A.; Hosmane, N. S.; Cowley, A. H. Angew. Chem. 1995, 107, 378; Angew. Chem., Int. Ed. Engl. 1995, 34, 332.
    • (1993) Angew. Chem. , vol.105 , pp. 761
    • He, X.1    Bartlett, R.A.2    Olmstead, M.M.3    Ruhlandt-Senge, K.4    Sturgeon, B.E.5    Power, P.P.6
  • 18
    • 33748214591 scopus 로고
    • Further compounds of this type were published later on: (a) Wiberg, N.; Amelunxen, K.; Nöth, H.; Schmidt, M.; Schwenk, H. Angew. Chem. 1996, 108, 110; Angew. Chem., Int. Ed. Engl. 1996, 35, 65. (b) Wiberg, N.; Amelunxen, K.; Blank, T.; Nöth, H.; Knizek, J. Organometallics 1998, 17, 5431. (c) Wehmschulte, R. J.; Ruhlandt-Senge, K.; Olmstead, M. M.; Hope, H.; Sturgeon, B. E.; Power, P. P. Inorg. Chem. 1993, 32, 2983. (d) He, X.; Bartlett, R. A.; Olmstead, M. M.; Ruhlandt- Senge, K.; Sturgeon, B. E.; Power, P. P. Angew. Chem. 1993, 105, 761; Angew. Chem., Int. Ed. Engl 1993, 32, 717. (e) Schluter, R. D.; Cowley, A. H.; Atwood, D. A.; Jones, R. A.; Bond, M. R.; Carrano, C. J. J. Am. Chem. Soc. 1993, 115, 2070. (f) Saxena, A. K.; Zhang, H.; Maguire, J. A.; Hosmane, N. S.; Cowley, A. H. Angew. Chem. 1995, 107, 378; Angew. Chem., Int. Ed. Engl. 1995, 34, 332.
    • (1993) Angew. Chem., Int. Ed. Engl , vol.32 , pp. 717
  • 19
    • 0001121772 scopus 로고
    • Further compounds of this type were published later on: (a) Wiberg, N.; Amelunxen, K.; Nöth, H.; Schmidt, M.; Schwenk, H. Angew. Chem. 1996, 108, 110; Angew. Chem., Int. Ed. Engl. 1996, 35, 65. (b) Wiberg, N.; Amelunxen, K.; Blank, T.; Nöth, H.; Knizek, J. Organometallics 1998, 17, 5431. (c) Wehmschulte, R. J.; Ruhlandt-Senge, K.; Olmstead, M. M.; Hope, H.; Sturgeon, B. E.; Power, P. P. Inorg. Chem. 1993, 32, 2983. (d) He, X.; Bartlett, R. A.; Olmstead, M. M.; Ruhlandt- Senge, K.; Sturgeon, B. E.; Power, P. P. Angew. Chem. 1993, 105, 761; Angew. Chem., Int. Ed. Engl 1993, 32, 717. (e) Schluter, R. D.; Cowley, A. H.; Atwood, D. A.; Jones, R. A.; Bond, M. R.; Carrano, C. J. J. Am. Chem. Soc. 1993, 115, 2070. (f) Saxena, A. K.; Zhang, H.; Maguire, J. A.; Hosmane, N. S.; Cowley, A. H. Angew. Chem. 1995, 107, 378; Angew. Chem., Int. Ed. Engl. 1995, 34, 332.
    • (1993) J. Am. Chem. Soc. , vol.115 , pp. 2070
    • Schluter, R.D.1    Cowley, A.H.2    Atwood, D.A.3    Jones, R.A.4    Bond, M.R.5    Carrano, C.J.6
  • 20
    • 0001240148 scopus 로고
    • Further compounds of this type were published later on: (a) Wiberg, N.; Amelunxen, K.; Nöth, H.; Schmidt, M.; Schwenk, H. Angew. Chem. 1996, 108, 110; Angew. Chem., Int. Ed. Engl. 1996, 35, 65. (b) Wiberg, N.; Amelunxen, K.; Blank, T.; Nöth, H.; Knizek, J. Organometallics 1998, 17, 5431. (c) Wehmschulte, R. J.; Ruhlandt-Senge, K.; Olmstead, M. M.; Hope, H.; Sturgeon, B. E.; Power, P. P. Inorg. Chem. 1993, 32, 2983. (d) He, X.; Bartlett, R. A.; Olmstead, M. M.; Ruhlandt- Senge, K.; Sturgeon, B. E.; Power, P. P. Angew. Chem. 1993, 105, 761; Angew. Chem., Int. Ed. Engl 1993, 32, 717. (e) Schluter, R. D.; Cowley, A. H.; Atwood, D. A.; Jones, R. A.; Bond, M. R.; Carrano, C. J. J. Am. Chem. Soc. 1993, 115, 2070. (f) Saxena, A. K.; Zhang, H.; Maguire, J. A.; Hosmane, N. S.; Cowley, A. H. Angew. Chem. 1995, 107, 378; Angew. Chem., Int. Ed. Engl. 1995, 34, 332.
    • (1995) Angew. Chem. , vol.107 , pp. 378
    • Saxena, A.K.1    Zhang, H.2    Maguire, J.A.3    Hosmane, N.S.4    Cowley, A.H.5
  • 21
    • 33748244535 scopus 로고
    • Further compounds of this type were published later on: (a) Wiberg, N.; Amelunxen, K.; Nöth, H.; Schmidt, M.; Schwenk, H. Angew. Chem. 1996, 108, 110; Angew. Chem., Int. Ed. Engl. 1996, 35, 65. (b) Wiberg, N.; Amelunxen, K.; Blank, T.; Nöth, H.; Knizek, J. Organometallics 1998, 17, 5431. (c) Wehmschulte, R. J.; Ruhlandt-Senge, K.; Olmstead, M. M.; Hope, H.; Sturgeon, B. E.; Power, P. P. Inorg. Chem. 1993, 32, 2983. (d) He, X.; Bartlett, R. A.; Olmstead, M. M.; Ruhlandt- Senge, K.; Sturgeon, B. E.; Power, P. P. Angew. Chem. 1993, 105, 761; Angew. Chem., Int. Ed. Engl 1993, 32, 717. (e) Schluter, R. D.; Cowley, A. H.; Atwood, D. A.; Jones, R. A.; Bond, M. R.; Carrano, C. J. J. Am. Chem. Soc. 1993, 115, 2070. (f) Saxena, A. K.; Zhang, H.; Maguire, J. A.; Hosmane, N. S.; Cowley, A. H. Angew. Chem. 1995, 107, 378; Angew. Chem., Int. Ed. Engl. 1995, 34, 332.
    • (1995) Angew. Chem., Int. Ed. Engl. , vol.34 , pp. 332
  • 28
    • 0025240431 scopus 로고
    • (a) Wieczorek, C.; Allwohn, J.; Schmidt-Lukasch, G.; Hunold, R.; Massa, W.; Berndt, A. Angew. Chem. 1990, 102, 435; Angew. Chem., Int. Ed. Engl. 1990, 29, 398.
    • (1990) Angew. Chem., Int. Ed. Engl. , vol.29 , pp. 398
  • 30
    • 33748219206 scopus 로고
    • (b) Steiner, D.; Balzereit, C.; Winkler, H.-J.; Stamatis, N.; Hofmann, M.; Schleyer, P. v. R.; Massa, W.; Berndt, A. Angew. Chem. 1994, 106, 2391; Angew. Chem., Int. Ed. Engl. 1994, 33, 2303.
    • (1994) Angew. Chem., Int. Ed. Engl. , vol.33 , pp. 2303
  • 32
    • 33748214174 scopus 로고
    • (c) Balzereit, C.; Kybart, C.; Winkler, H.-J.; Massa, W.; Berndt, A. Angew. Chem. 1994, 106, 1579; Angew. Chem., Int. Ed. Engl. 1994, 33, 1487.
    • (1994) Angew. Chem., Int. Ed. Engl. , vol.33 , pp. 1487
  • 34
    • 84990158059 scopus 로고
    • (d) Höfner, A.; Ziegler, B.; Masaa, W.; Berndt, A. Angew. Chem. 1989, 101, 188; Angew. Chem., Int. Ed. Engl. 1989, 28, 186.
    • (1989) Angew. Chem., Int. Ed. Engl. , vol.28 , pp. 186
  • 36
    • 33748234318 scopus 로고
    • Review
    • (e) Willershausen, P.; Schmidt-Lukasch, G.; Kybart, C.; Allwohn, J.; Massa, W.; McKee, M. L.; Schleyer, P. v. R.; Berndt, A. Angew. Chem. 1992, 304, 1417; Angew. Chem., Int. Ed. Engl. 1992, 31, 1384. Review:
    • (1992) Angew. Chem., Int. Ed. Engl. , vol.31 , pp. 1384
  • 37
    • 0000164208 scopus 로고
    • (f) Berndt, A.; Angew. Chem. 1993, 105, 1034; Angew. Chem., Int. Ed. Engl. 1993, 32, 985.
    • (1993) Angew. Chem. , vol.105 , pp. 1034
    • Berndt, A.1
  • 38
    • 33748334961 scopus 로고
    • (f) Berndt, A.; Angew. Chem. 1993, 105, 1034; Angew. Chem., Int. Ed. Engl. 1993, 32, 985.
    • (1993) Angew. Chem., Int. Ed. Engl. , vol.32 , pp. 985
  • 56
    • 24444456343 scopus 로고    scopus 로고
    • Recent examples: (a) Klimova, E. I.; Ramirez, L. R.; Klimova-Berestneva, T.; Garcia, M. M.; Moreno-Esparza, R.; Toledano, S. A.; Toscano, R. A. Izv. Akad. Nauk SSSR, Ser. Khim. 1998, 499. (b) Schulte, N.; Möller, M. H.; Rodewald, U.; Wurthwein, E.-U. Chem. Ber. 1994, 127, 1287. (c) Ting, P.-C.; Lin, Y.-C.; Lee, G.-H.; Cheng, M.-C.; Wang, Y. J. Am. Chem. Soc. 1996, 118, 6433. (d) Ting, P.-C.; Lin, Y.- C.; Cheng, M.-C.; Wang, Y. Organometallics 1994, 13, 2150. (e) Golobish, T. D.; Dailey, W. P. J. Org. Chem. 1995, 60, 7865.
    • (1998) Izv. Akad. Nauk SSSR, Ser. Khim. , pp. 499
    • Klimova, E.I.1    Ramirez, L.R.2    Klimova-Berestneva, T.3    Garcia, M.M.4    Moreno-Esparza, R.5    Toledano, S.A.6    Toscano, R.A.7
  • 57
    • 0000602262 scopus 로고
    • Recent examples: (a) Klimova, E. I.; Ramirez, L. R.; Klimova- Berestneva, T.; Garcia, M. M.; Moreno-Esparza, R.; Toledano, S. A.; Toscano, R. A. Izv. Akad. Nauk SSSR, Ser. Khim. 1998, 499. (b) Schulte, N.; Möller, M. H.; Rodewald, U.; Wurthwein, E.-U. Chem. Ber. 1994, 127, 1287. (c) Ting, P.-C.; Lin, Y.-C.; Lee, G.-H.; Cheng, M.-C.; Wang, Y. J. Am. Chem. Soc. 1996, 118, 6433. (d) Ting, P.-C.; Lin, Y.- C.; Cheng, M.-C.; Wang, Y. Organometallics 1994, 13, 2150. (e) Golobish, T. D.; Dailey, W. P. J. Org. Chem. 1995, 60, 7865.
    • (1994) Chem. Ber. , vol.127 , pp. 1287
    • Schulte, N.1    Möller, M.H.2    Rodewald, U.3    Wurthwein, E.-U.4
  • 58
    • 0029928971 scopus 로고    scopus 로고
    • Recent examples: (a) Klimova, E. I.; Ramirez, L. R.; Klimova- Berestneva, T.; Garcia, M. M.; Moreno-Esparza, R.; Toledano, S. A.; Toscano, R. A. Izv. Akad. Nauk SSSR, Ser. Khim. 1998, 499. (b) Schulte, N.; Möller, M. H.; Rodewald, U.; Wurthwein, E.-U. Chem. Ber. 1994, 127, 1287. (c) Ting, P.-C.; Lin, Y.-C.; Lee, G.-H.; Cheng, M.-C.; Wang, Y. J. Am. Chem. Soc. 1996, 118, 6433. (d) Ting, P.-C.; Lin, Y.- C.; Cheng, M.-C.; Wang, Y. Organometallics 1994, 13, 2150. (e) Golobish, T. D.; Dailey, W. P. J. Org. Chem. 1995, 60, 7865.
    • (1996) J. Am. Chem. Soc. , vol.118 , pp. 6433
    • Ting, P.-C.1    Lin, Y.-C.2    Lee, G.-H.3    Cheng, M.-C.4    Wang, Y.5
  • 59
    • 0001482435 scopus 로고
    • Recent examples: (a) Klimova, E. I.; Ramirez, L. R.; Klimova- Berestneva, T.; Garcia, M. M.; Moreno-Esparza, R.; Toledano, S. A.; Toscano, R. A. Izv. Akad. Nauk SSSR, Ser. Khim. 1998, 499. (b) Schulte, N.; Möller, M. H.; Rodewald, U.; Wurthwein, E.-U. Chem. Ber. 1994, 127, 1287. (c) Ting, P.-C.; Lin, Y.-C.; Lee, G.-H.; Cheng, M.-C.; Wang, Y. J. Am. Chem. Soc. 1996, 118, 6433. (d) Ting, P.-C.; Lin, Y.-C.; Cheng, M.-C.; Wang, Y. Organometallics 1994, 13, 2150. (e) Golobish, T. D.; Dailey, W. P. J. Org. Chem. 1995, 60, 7865.
    • (1994) Organometallics , vol.13 , pp. 2150
    • Ting, P.-C.1    Lin, Y.-C.2    Cheng, M.-C.3    Wang, Y.4
  • 60
    • 0010469892 scopus 로고
    • Recent examples: (a) Klimova, E. I.; Ramirez, L. R.; Klimova- Berestneva, T.; Garcia, M. M.; Moreno-Esparza, R.; Toledano, S. A.; Toscano, R. A. Izv. Akad. Nauk SSSR, Ser. Khim. 1998, 499. (b) Schulte, N.; Möller, M. H.; Rodewald, U.; Wurthwein, E.-U. Chem. Ber. 1994, 127, 1287. (c) Ting, P.-C.; Lin, Y.-C.; Lee, G.-H.; Cheng, M.-C.; Wang, Y. J. Am. Chem. Soc. 1996, 118, 6433. (d) Ting, P.-C.; Lin, Y.- C.; Cheng, M.-C.; Wang, Y. Organometallics 1994, 13, 2150. (e) Golobish, T. D.; Dailey, W. P. J. Org. Chem. 1995, 60, 7865.
    • (1995) J. Org. Chem. , vol.60 , pp. 7865
    • Golobish, T.D.1    Dailey, W.P.2
  • 75
    • 0004150157 scopus 로고
    • Siemens Analytical X-RAY Instruments Inc.: Madison
    • SHELXTL PLUS REL. 4.1; Siemens Analytical X-RAY Instruments Inc.: Madison, 1990. Sheldrick, G. M. SHELXL-93, Program for the Refinement of Structures; Universität Göttingen, 1993.
    • (1990) SHELXTL PLUS REL. 4.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.