Study Set Content:
81- Flashcard

It belongs to the family of (blank) and has a structure similar to that of (blank)

xanthine alkaloids

purine

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82- Flashcard

Caffeine C8H10N4O2 is a CNS

stimulant

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83- Flashcard

 of caffeine can elevate mood and increase alertness,

Low doses

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84- Flashcard

can cause headache and dizziness.

high doses

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85- Flashcard

Properties

• 7-methyltheophylline

• guaranine

• theine

• Bitter taste

• Solutions in water are neutral to litmus

• Odorless

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86- Flashcard

Caffeine

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87- Flashcard

Synthesis of Caffeine • Reaction between

dimethylurea and malonic acid.

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88- Flashcard

• Theobromine is treated with

methyl iodide and sodium methoxide.

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89- Flashcard

Uric acid is treated with

methyl iodide in an alkaline solution

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90- Flashcard

Uric acid is treated with methyl iodide in an alkaline solution, it produces

1,3,7- trimethyluric acid.

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91- Flashcard

On heating this further with

phosphoryl chloride (POCl3

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92- Flashcard

On heating this further with phosphoryl chloride (POCl3), it produces

chlorocaffeine,

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93- Flashcard

• On heating this further with phosphoryl chloride (POCl3), it produces chlorocaffeine, which forms caffeine on further reduction with

hydrogen iodide

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94- Flashcard

Uric acid

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95- Flashcard

1,3,7- trimethyluric acid.

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96- Flashcard

Enolic

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97- Flashcard

Chlorocaffeine

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98- Flashcard

Caffeine

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99- Flashcard

Caffeine process

Uric acid to 1,3,7- trimethyluric acid.to enolic to chlorocaffeine to caffeine

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100- Flashcard

adenosine

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