Knowledge (XXG)

Protonolysis

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109:
The alkyl derivatives of many metals undergo protonolysis. For the alkyls of very electropositive metals (zinc, magnesium, and lithium), water is sufficiently acidic, in which case the reaction is called hydrolysis. Protonolysis with mineral acids is sometimes used to remove organic ligands from a
30:
since the reaction requires polar M-R bonds, where δ+ and δ- signify partial positive and negative charges associated with the bonding atoms. When compounds containing these bonds are treated with acid (HX), these bonds cleave:
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Inorganic materials with highly charged anions are often susceptible to protonolysis. Derivatives of nitride (N), phosphides (P), and silicides (Si) hydrolyze to give
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Chu Sun, Masami Okabe, David L. Coffen, Jeffrey Schwartz "Conjugate Addition Of A Vinylzirconium Reagent: 3-(1-octen-1-yl)cyclopentanone".Org. Synth. 1993, 71, 83.
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Gordon W. Gribble, Ahmed F. Abdel-Magid, "Sodium Triacetoxyborohydride" Encyclopedia of Reagents for Organic Synthesis, 2007, John Wiley & Sons.
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anion is susceptible to reaction with even weak acids, resulting protonolysis of one or more B-H bonds. Protonolysis of sodium borohydride with
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Greenwood, N. N.; & Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford:Butterworth-Heinemann.
98: 27: 42:(X = OH) is a special case of protonolysis. Compounds susceptible to hydrolysis often undergo protonolysis. 59: 192: 175: 159: 209: 23: 163: 55: 51: 39: 179: 97:
Related reactions occur for hydrides of other electropositive elements, e.g.
123: 119: 127: 130:. Analogous reactions occur with molecular compounds with M-NR 114:
Nitrides, phosphides, silicides and related species
8: 151: 26:by acids. Many examples are found in 7: 16:Cleavage of a chemical bond by acids 14: 1: 164:10.1002/047084289X.rs112.pub2 232: 99:lithium aluminium hydride 180:10.15227/orgsyn.071.0083 28:organometallic chemistry 60:triacetoxyborohydride 22:is the cleavage of a 35:M-R + HX → M-X + H-R 216:Chemical reactions 223: 200: 189: 183: 172: 166: 156: 231: 230: 226: 225: 224: 222: 221: 220: 206: 205: 204: 203: 190: 186: 173: 169: 157: 153: 148: 141: 137: 133: 116: 107: 93: 89: 85: 81: 77: 73: 69: 48: 17: 12: 11: 5: 229: 227: 219: 218: 208: 207: 202: 201: 184: 167: 150: 149: 147: 144: 139: 135: 131: 115: 112: 110:metal center. 106: 103: 95: 94: 91: 87: 83: 79: 75: 71: 67: 47: 44: 37: 36: 15: 13: 10: 9: 6: 4: 3: 2: 228: 217: 214: 213: 211: 198: 197:0-7506-3365-4 194: 188: 185: 181: 177: 171: 168: 165: 161: 155: 152: 145: 143: 129: 125: 121: 113: 111: 104: 102: 100: 65: 64: 63: 61: 57: 53: 45: 43: 41: 34: 33: 32: 29: 25: 24:chemical bond 21: 187: 170: 154: 117: 108: 96: 49: 38: 20:Protonolysis 19: 18: 138:, and M-SiR 56:acetic acid 52:borohydride 146:References 40:Hydrolysis 124:phosphine 210:Category 78:→ NaBH(O 46:Hydrides 142:bonds. 120:ammonia 195:  134:, M-PR 128:silane 126:, and 105:Alkyls 70:+ 3 HO 58:gives 90:+ 3 H 193:ISBN 66:NaBH 50:The 176:doi 160:doi 82:CCH 74:CCH 212:: 122:, 101:. 62:: 199:. 182:. 178:: 162:: 140:3 136:2 132:2 92:2 88:3 86:) 84:3 80:2 76:3 72:2 68:4

Index

chemical bond
organometallic chemistry
Hydrolysis
borohydride
acetic acid
triacetoxyborohydride
lithium aluminium hydride
ammonia
phosphine
silane
doi
10.1002/047084289X.rs112.pub2
doi
10.15227/orgsyn.071.0083
ISBN
0-7506-3365-4
Category
Chemical reactions

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